-
question_answer1)
Light year is a unit of [MP PMT 1989; CPMT 1991; AFMC 1991, 2005]
A)
Time done
clear
B)
Mass done
clear
C)
Distance done
clear
D)
Energy done
clear
View Solution play_arrow
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question_answer2)
The magnitude of any physical quantity
A)
Depends on the method of measurement done
clear
B)
Does not depend on the method of measurement done
clear
C)
Is more in SI system than in CGS system done
clear
D)
Directly proportional to the fundamental units of mass, length and time done
clear
View Solution play_arrow
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question_answer3)
Which of the following is not equal to watt [SCRA 1991; CPMT 1990]
A)
Joule/second done
clear
B)
Ampere \[\times \] volt done
clear
C)
(Ampere)2 \[\times \]ohm done
clear
D)
Ampere/volt done
clear
View Solution play_arrow
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question_answer4)
Newton's second is the unit of [CPMT 1984, 85; MP PMT 1984]
A)
Velocity done
clear
B)
Angular momentum done
clear
C)
Momentum done
clear
D)
Energy done
clear
View Solution play_arrow
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question_answer5)
Which of the following is not represented in correct unit [NCERT 1984; MNR 1995]
A)
\[\frac{\text{Stress}}{\text{Strain}}=N/{{m}^{2}}\].... done
clear
B)
Surface tension =\[N/m\] done
clear
C)
Energy \[=kg\text{-}m/\sec \] done
clear
D)
Pressure \[=N/{{m}^{2}}\] done
clear
View Solution play_arrow
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question_answer6)
One second is equal to [MNR 1986]
A)
1650763.73 time periods of \[Kr\] clock done
clear
B)
652189.63 time periods of \[Kr\] clock done
clear
C)
1650763.73 time periods of \[Cs\] clock done
clear
D)
9192631770 time periods of \[Cs\] clock done
clear
View Solution play_arrow
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question_answer7)
One nanometre is equal to [SCRA 1986; MNR 1986]
A)
\[{{10}^{9}}mm\]. done
clear
B)
\[{{10}^{-6}}\,cm\] done
clear
C)
\[{{10}^{-7}}cm\] done
clear
D)
\[{{10}^{-9}}cm\] done
clear
View Solution play_arrow
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question_answer8)
A micron is related to centimetre as
A)
\[1\,micron={{10}^{-8}}cm\] done
clear
B)
\[1\,micron={{10}^{-6}}cm\] done
clear
C)
\[1\,micron={{10}^{-5}}cm\] done
clear
D)
\[1\,micron={{10}^{-4}}\,cm\] done
clear
View Solution play_arrow
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question_answer9)
The unit of power is [CPMT 1985]
A)
Joule done
clear
B)
Joule per second only done
clear
C)
Joule per second and watt both done
clear
D)
Only watt done
clear
View Solution play_arrow
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question_answer10)
A suitable unit for gravitational constant is [MNR 1988]
A)
\[kg\text{-}\,m{{\sec }^{-1}}\] done
clear
B)
\[N\ {{m}^{-1}}\sec \] done
clear
C)
\[N\,\,{{m}^{2}}\,k{{g}^{-2}}\] done
clear
D)
\[kg\,m\,{{\sec }^{-1}}\] done
clear
View Solution play_arrow
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question_answer11)
SI unit of pressure is [EAMCET 1980; DPMT 1984; CBSE PMT 1988; NCERT 1976; AFMC 1991; USSR MEE 1991]
A)
Pascal done
clear
B)
\[Dynes/c{{m}^{2}}\] done
clear
C)
\[cm\,\] of \[Hg\] done
clear
D)
Atmosphere done
clear
View Solution play_arrow
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question_answer12)
The unit of angular acceleration in the SI system is [SCRA 1980; EAMCET 1981]
A)
\[N\,k{{g}^{-1}}\] done
clear
B)
\[m\,{{s}^{-2}}\] done
clear
C)
\[rad\,{{s}^{-2}}\] done
clear
D)
\[m\,k{{g}^{-1}}K\] done
clear
View Solution play_arrow
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question_answer13)
The unit of Stefan's constant \[\sigma \] is [AFMC 1986; MP PET 1992; MP PMT 1992; CBSE PMT 2002]
A)
\[W\,{{m}^{-2}}\,{{K}^{-1}}\]. done
clear
B)
\[W\,{{m}^{2}}\,{{K}^{-4}}\] done
clear
C)
\[W\,{{m}^{-2}}\,{{K}^{-4}}\] done
clear
D)
\[W\,{{m}^{-2}}\,{{K}^{4}}\] done
clear
View Solution play_arrow
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question_answer14)
Which of the following is not a unit of energy [AIIMS 1985]
A)
\[W\text{-s}\]. done
clear
B)
\[kg\text{-}m/\sec \] done
clear
C)
\[N\text{-}m\] done
clear
D)
Joule done
clear
View Solution play_arrow
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question_answer15)
In \[S=a+bt+c{{t}^{2}}\]. \[S\] is measured in metres and \[t\] in seconds. The unit of \[c\] is [MP PMT 1993]
A)
None done
clear
B)
\[m\] done
clear
C)
\[m{{s}^{-1}}\] done
clear
D)
\[m{{s}^{-2}}\] done
clear
View Solution play_arrow
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question_answer16)
Joule-second is the unit of [CPMT 1990; CBSE PMT 1993; BVP 2003]
A)
Work done
clear
B)
Momentum done
clear
C)
Pressure done
clear
D)
Angular momentum done
clear
View Solution play_arrow
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question_answer17)
Unit of energy in SI system is [CPMT 1971; NCERT 1976]
A)
Erg done
clear
B)
Calorie done
clear
C)
Joule done
clear
D)
Electron volt done
clear
View Solution play_arrow
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question_answer18)
A cube has numerically equal volume and surface area. The volume of such a cube is [CPMT 1971, 74]
A)
216 units done
clear
B)
1000 units done
clear
C)
2000 units done
clear
D)
3000 units done
clear
View Solution play_arrow
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question_answer19)
Wavelength of ray of light is \[0.00006\,m\]. It is equal to [CPMT 1977]
A)
\[6\,\,microns\] done
clear
B)
\[60\,\,microns\] done
clear
C)
\[600\,\,microns\] done
clear
D)
\[0.6\,\,microns\] done
clear
View Solution play_arrow
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question_answer20)
Electron volt is a unit of [MP PMT 1993]
A)
Charge done
clear
B)
Potential difference done
clear
C)
Momentum done
clear
D)
Energy done
clear
View Solution play_arrow
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question_answer21)
Temperature can be expressed as a derived quantity in terms of any of the following [MP PET 1993; UPSEAT 2001]
A)
Length and mass done
clear
B)
Mass and time done
clear
C)
Length, mass and time done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer22)
Unit of power is [NCERT 1972; CPMT 1971; DCE 1999]
A)
Kilowatt done
clear
B)
Kilowatt-hour done
clear
C)
Dyne done
clear
D)
Joule done
clear
View Solution play_arrow
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question_answer23)
Density of wood is \[0.5gm/cc\] in the CGS system of units. The corresponding value in MKS units is [CPMT 1983; NCERT 1973; JIPMER 1993]
A)
500 done
clear
B)
5 done
clear
C)
0.5 done
clear
D)
5000 done
clear
View Solution play_arrow
-
question_answer24)
Unit of energy is [NCERT 1974; CPMT 1975]
A)
\[J/\sec \] done
clear
B)
\[Watt-day\] done
clear
C)
\[Kilowatt\] done
clear
D)
\[gm\text{-}cm/{{\sec }^{2}}\] done
clear
View Solution play_arrow
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question_answer25)
Which is the correct unit for measuring nuclear radii
A)
Micron done
clear
B)
Millimetre done
clear
C)
Angstrom done
clear
D)
Fermi done
clear
View Solution play_arrow
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question_answer26)
One Mach number is equal to
A)
Velocity of light done
clear
B)
Velocity of sound \[(332\,\,m/\sec )\] done
clear
C)
\[1\,\,km/\sec \] done
clear
D)
\[1\,m/\sec \] done
clear
View Solution play_arrow
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question_answer27)
The unit for nuclear dose given to a patient is
A)
Fermi done
clear
B)
Rutherford done
clear
C)
Curie done
clear
D)
Roentgen done
clear
View Solution play_arrow
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question_answer28)
Volt/metre is the unit of [AFMC 1991; CPMT 1984]
A)
Potential done
clear
B)
Work done
clear
C)
Force done
clear
D)
Electric intensity done
clear
View Solution play_arrow
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question_answer29)
\[Newton/metr{{e}^{\text{2}}}\] is the unit of [CPMT 1985; ISM Dhanbad 1994; AFMC 1995]
A)
Energy done
clear
B)
Momentum done
clear
C)
Force done
clear
D)
Pressure done
clear
View Solution play_arrow
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question_answer30)
The unit of surface tension in SI system is [MP PMT 1984; AFMC 1986; CPMT 1985, 87; CBSE PMT 1993; KCET 1999; DCE 2000, 01]
A)
\[Dyne/c{{m}^{2}}\] done
clear
B)
\[I=\frac{Q}{t}=\frac{[Q]}{[T]}=[{{M}^{0}}{{L}^{0}}{{T}^{-1}}Q]\] done
clear
C)
\[Dyne/cm\] done
clear
D)
\[Newton/{{m}^{2}}\] done
clear
View Solution play_arrow
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question_answer31)
The unit of reduction factor of tangent galvanometer is [CPMT 1987; AFMC 2004]
A)
Ampere done
clear
B)
Gauss done
clear
C)
Radian done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer32)
The unit of self inductance of a coil is [MP PMT 1983, 92; SCRA 1986; CBSE PMT 1993; CPMT 1984, 85, 87]
A)
Farad done
clear
B)
Henry done
clear
C)
Weber done
clear
D)
Tesla done
clear
View Solution play_arrow
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question_answer33)
Henry/ohm can be expressed in [CPMT 1987]
A)
Second done
clear
B)
Coulomb done
clear
C)
Mho done
clear
D)
Metre done
clear
View Solution play_arrow
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question_answer34)
The SI unit of momentum is [SCRA 1986, 89; CPMT 1987]
A)
\[\frac{kg}{m}\] done
clear
B)
\[\frac{kg.m}{\sec }\] done
clear
C)
\[\frac{kg.{{m}^{2}}}{\sec }\] done
clear
D)
\[kg\times Newton\] done
clear
View Solution play_arrow
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question_answer35)
The velocity of a particle depends upon as \[v=a+bt+c{{t}^{2}}\]; if the velocity is in \[m/\sec \], the unit of \[a\] will be [CPMT 1990]
A)
\[m/\sec \] done
clear
B)
\[m/{{\sec }^{2}}\] done
clear
C)
\[{{m}^{2}}/\sec \] done
clear
D)
\[m/{{\sec }^{3}}\] done
clear
View Solution play_arrow
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question_answer36)
One million electron volt \[(1\,MeV)\] is equal to [JIPMER 1993, 97]
A)
\[{{10}^{5}}eV\] done
clear
B)
\[{{10}^{6}}eV\] done
clear
C)
\[{{10}^{4}}eV\] done
clear
D)
\[{{10}^{7}}eV\] done
clear
View Solution play_arrow
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question_answer37)
\[Erg-{{m}^{-1}}\] can be the unit of measure for [DCE 1993]
A)
Force done
clear
B)
Momentum done
clear
C)
Power done
clear
D)
Acceleration done
clear
View Solution play_arrow
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question_answer38)
The unit of potential energy is [AFMC 1991]
A)
\[g(cm/{{\sec }^{2}})\] done
clear
B)
\[g{{(cm/\sec )}^{2}}\] done
clear
C)
\[g(c{{m}^{2}}/\sec )\] done
clear
D)
\[g(cm/\sec )\] done
clear
View Solution play_arrow
-
question_answer39)
Which of the following represents a volt [CPMT 1990; AFMC 1991]
A)
Joule/second done
clear
B)
Watt/Ampere done
clear
C)
Watt/Coulomb done
clear
D)
Coulomb/Joule done
clear
View Solution play_arrow
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question_answer40)
\[Kilowatt-hour\] is a unit of [NCERT 1975; AFMC 1991]
A)
Electrical charge done
clear
B)
Energy done
clear
C)
Power done
clear
D)
Force done
clear
View Solution play_arrow
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question_answer41)
What is the SI unit of permeability [CBSE PMT 1993]
A)
Henry per metre done
clear
B)
Tesla metre per ampere done
clear
C)
Weber per ampere metre done
clear
D)
All the above units are correct done
clear
View Solution play_arrow
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question_answer42)
In which of the following systems of unit, \[Weber\] is the unit of magnetic flux [SCRA 1991; CBSE PMT 1993; DPMT 2005]
A)
CGS done
clear
B)
MKS done
clear
C)
SI done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer43)
Tesla is a unit for measuring [CBSE PMT 1993]
A)
Magnetic moment done
clear
B)
Magnetic induction done
clear
C)
Magnetic intensity done
clear
D)
Magnetic pole strength done
clear
View Solution play_arrow
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question_answer44)
If the unit of length and force be increased four times, then the unit of energy is [Kerala PMT 2005]
A)
Increased 4 times done
clear
B)
Increased 8 times done
clear
C)
Increased 16 times done
clear
D)
Decreased 16 times done
clear
View Solution play_arrow
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question_answer45)
Oersted is a unit of [SCRA 1989]
A)
Dip done
clear
B)
Magnetic intensity done
clear
C)
Magnetic moment done
clear
D)
Pole strength done
clear
View Solution play_arrow
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question_answer46)
\[Ampere-hour\] is a unit of [SCRA 1980, 89; ISM Dhanbad 1994]
A)
Quantity of electricity done
clear
B)
Strength of electric current done
clear
C)
Power done
clear
D)
Energy done
clear
View Solution play_arrow
-
question_answer47)
The unit of specific resistance is [SCRA 1989; MP PET 1984; CPMT 1975]
A)
\[Ohm/c{{m}^{2}}\] done
clear
B)
\[Ohm/cm\] done
clear
C)
\[Ohm-cm\] done
clear
D)
\[{{(Ohm-cm)}^{-1}}\] done
clear
View Solution play_arrow
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question_answer48)
The binding energy of a nucleon in a nucleus is of the order of a few [SCRA 1979]
A)
\[eV\] done
clear
B)
\[Ergs\] done
clear
C)
\[MeV\] done
clear
D)
\[Volts\] done
clear
View Solution play_arrow
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question_answer49)
\[Par\sec \] is a unit of [SCRA 1986; BVP 2003; AIIMS 2005]
A)
Distance done
clear
B)
Velocity done
clear
C)
Time done
clear
D)
Angle done
clear
View Solution play_arrow
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question_answer50)
If \[{{u}_{1}}\] and \[{{u}_{2}}\] are the units selected in two systems of measurement and \[{{n}_{1}}\] and \[{{n}_{2}}\] their numerical values, then [SCRA 1986]
A)
\[{{n}_{1}}{{u}_{1}}={{n}_{2}}{{u}_{2}}\] done
clear
B)
\[{{n}_{1}}{{u}_{1}}+{{n}_{2}}{{u}_{2}}=0\] done
clear
C)
\[{{n}_{1}}{{n}_{2}}={{u}_{1}}{{u}_{2}}\] done
clear
D)
\[({{n}_{1}}+{{u}_{1}})=({{n}_{2}}+{{u}_{2}})\] done
clear
View Solution play_arrow
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question_answer51)
\[1\,eV\] is [SCRA 1986]
A)
Same as one joule done
clear
B)
\[1.6\times {{10}^{-19}}J\] done
clear
C)
\[1V\] done
clear
D)
\[1.6\times {{10}^{-19}}C\] done
clear
View Solution play_arrow
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question_answer52)
\[1kWh=\] [AFMC 1986; SCRA 1986, 91]
A)
\[1000W\] done
clear
B)
\[36\times {{10}^{5}}J\] done
clear
C)
\[1000J\] done
clear
D)
\[3600\,J\] done
clear
View Solution play_arrow
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question_answer53)
Universal time is based on [SCRA 1989]
A)
Rotation of the earth on its axis done
clear
B)
Earth's orbital motion around the earth done
clear
C)
Vibrations of cesium atom done
clear
D)
Oscillations of quartz crystal done
clear
View Solution play_arrow
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question_answer54)
The nuclear cross-section is measured in barn, it is equal to
A)
\[{{10}^{-20}}\,{{m}^{2}}\] done
clear
B)
\[{{10}^{-30}}\,{{m}^{2}}\] done
clear
C)
\[{{10}^{-28}}\,{{m}^{2}}\] done
clear
D)
\[{{10}^{-14}}\,{{m}^{2}}\] done
clear
View Solution play_arrow
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question_answer55)
Unit of moment of inertia in MKS system [MP PMT 1984]
A)
\[kg\times c{{m}^{2}}\] done
clear
B)
\[kg/c{{m}^{2}}\] done
clear
C)
\[kg\times {{m}^{2}}\] done
clear
D)
\[Joule\times m\] done
clear
View Solution play_arrow
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question_answer56)
Unit of stress is [MP PMT 1984]
A)
\[N/m\] done
clear
B)
\[N-m\] done
clear
C)
\[N/{{m}^{2}}\] done
clear
D)
\[N-{{m}^{2}}\] done
clear
View Solution play_arrow
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question_answer57)
Unit of Stefan's constant is [MP PMT 1989]
A)
\[J\,{{s}^{-1}}\] done
clear
B)
\[J\,{{m}^{-2}}{{s}^{-1}}{{K}^{-4}}\] done
clear
C)
\[J\,{{m}^{-2}}\] done
clear
D)
\[J\,s\] done
clear
View Solution play_arrow
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question_answer58)
Unit of magnetic moment is [MP PET 1989]
A)
\[Ampere-metr{{e}^{2}}\] done
clear
B)
\[Ampere-metre\] done
clear
C)
\[Weber-metr{{e}^{2}}\] done
clear
D)
\[Weber/metre\] done
clear
View Solution play_arrow
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question_answer59)
Curie is a unit of [CBSE PMT 1992; CPMT 1992]
A)
Energy of g-rays done
clear
B)
Half life done
clear
C)
Radioactivity done
clear
D)
Intensity of g-rays done
clear
View Solution play_arrow
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question_answer60)
Hertz is the unit for [MNR 1983; SCRA 1983; RPMT 1999]
A)
Frequency done
clear
B)
Force done
clear
C)
Electric charge done
clear
D)
Magnetic flux done
clear
View Solution play_arrow
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question_answer61)
One pico Farad is equal to
A)
\[{{10}^{-24}}F\] done
clear
B)
\[{{10}^{-18}}F\] done
clear
C)
\[{{10}^{-12}}F\] done
clear
D)
\[{{10}^{-6}}F\] done
clear
View Solution play_arrow
-
question_answer62)
In SI, Henry is the unit of [MP PET 1984; CBSE PMT 1993; DPMT 1984]
A)
Self inductance done
clear
B)
Mutual inductance done
clear
C)
and both done
clear
D)
None of the above done
clear
View Solution play_arrow
-
question_answer63)
The unit of \[e.m.f.\]is [CPMT 1986; AFMC 1986]
A)
Joule done
clear
B)
Joule-Coulomb done
clear
C)
Volt?Coulomb done
clear
D)
Joule/Coulomb done
clear
View Solution play_arrow
-
question_answer64)
Which of the following is not the unit of time [CPMT 1991; NCERT 1990; DPMT 1987; AFMC 1996]
A)
Micro second done
clear
B)
Leap year done
clear
C)
Lunar months done
clear
D)
Parallactic second done
clear
E)
(e) Solar day done
clear
View Solution play_arrow
-
question_answer65)
Unit of self inductance is [MP PET 1982]
A)
\[\frac{Newton-second}{Coulomb\times Ampere}\] done
clear
B)
\[\frac{Joule/Coulomb\times Second}{Ampere}\] done
clear
C)
\[\frac{Volt\times metre}{Coulomb}\] done
clear
D)
\[\frac{Newton\times metre}{Ampere}\] done
clear
View Solution play_arrow
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question_answer66)
To determine the Young's modulus of a wire, the formula is \[Y=\frac{F}{A}:\frac{L}{\Delta L};\] where \[L\] = length, \[A=\]area of cross-section of the wire, \[\Delta L=\]change in length of the wire when stretched with a force \[F\]. The conversion factor to change it from CGS to MKS system is [MP PET 1983]
A)
1 done
clear
B)
10 done
clear
C)
0.1 done
clear
D)
0.01 done
clear
View Solution play_arrow
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question_answer67)
Young's modulus of a material has the same units as [MP PMT 1994]
A)
Pressure done
clear
B)
Strain done
clear
C)
Compressibility done
clear
D)
Force done
clear
View Solution play_arrow
-
question_answer68)
One yard in SI units is equal [MP PMT 1995]
A)
1.9144 \[metre\] done
clear
B)
0.9144 \[metre\] done
clear
C)
0.09144 \[kilometre\] done
clear
D)
1.0936 \[kilometre\] done
clear
View Solution play_arrow
-
question_answer69)
Which of the following is smallest unit [AFMC 1996]
A)
Millimetre done
clear
B)
Angstrom done
clear
C)
Fermi done
clear
D)
Metre done
clear
View Solution play_arrow
-
question_answer70)
Which one of the following pairs of quantities and their units is a proper match
A)
Electric field ?\[Coulomb/m\] done
clear
B)
Magnetic flux ? \[Weber\] done
clear
C)
Power ? Farad done
clear
D)
Capacitance ? Henry done
clear
View Solution play_arrow
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question_answer71)
The units of modulus of rigidity are [MP PMT 1997]
A)
\[N-m\] done
clear
B)
\[N/m\] done
clear
C)
\[N-{{m}^{2}}\] done
clear
D)
\[N/{{m}^{2}}\] done
clear
View Solution play_arrow
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question_answer72)
The unit of absolute permittivity is [CMEET Bihar 1995]
A)
\[Fm\] (Farad-meter) done
clear
B)
\[F{{m}^{-1}}\] (Farad/meter) done
clear
C)
\[F{{m}^{-2}}\](Farad/\[metr{{e}^{2}}\]) done
clear
D)
\[F\] (Farad) done
clear
E)
(e) None of these done
clear
View Solution play_arrow
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question_answer73)
Match List-I with List-II and select the correct answer using the codes given below the lists [SCRA 1994] List-I List-II I. Joule A. Henry \[\times \] Amp/sec II. Watt B. Farad \[\times \] Volt III. Volt C. Coulomb \[\times \] Volt IV. Coulomb D. Oersted \[\times \] cm E. Amp \[\times \] Gauss F. \[Am{{p}^{2}}\] \[\times \] Ohm
A)
Codes: \[I-A,\,II-F,\,III-E,\,IV-D\] done
clear
B)
\[I-C,\,II-F,\,III-A,\,IV-B\] done
clear
C)
\[I-C,\,II-F,\,III-A,\,IV-E\] done
clear
D)
\[I-B,\,II-F,\,III-A,\,IV-C\] done
clear
View Solution play_arrow
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question_answer74)
Which relation is wrong [RPMT 1997]
A)
1 Calorie = 4.18 Joules done
clear
B)
\[1\overset{\text{o}}{\mathop{\text{A}}}\,={{10}^{-10}}m\] done
clear
C)
\[1\,\,MeV=1.6\times {{10}^{-13}}Joules\] done
clear
D)
\[1\,Newton={{10}^{-5}}Dynes\] done
clear
View Solution play_arrow
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question_answer75)
If \[x=at+b{{t}^{2}}\], where \[x\] is the distance travelled by the body in kilometres while \[t\] is the time in seconds, then the units of b are [CBSE PMT 1993]
A)
\[km/s\] done
clear
B)
\[km-s\] done
clear
C)
\[km/{{s}^{2}}\] done
clear
D)
\[km-{{s}^{2}}\] done
clear
View Solution play_arrow
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question_answer76)
The equation \[\left( P+\frac{a}{{{v}^{2}}} \right)\] \[(v-b)\] constant. The units of \[a\] are [MNR 1995; AFMC 1995]
A)
\[Dyne\times c{{m}^{5}}\] done
clear
B)
\[Dyne\times c{{m}^{4}}\] done
clear
C)
\[Dyne/c{{m}^{3}}\] done
clear
D)
\[Dyne/c{{m}^{2}}\] done
clear
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question_answer77)
Which of the following quantity is expressed as force per unit area [AFMC 1995]
A)
Work done
clear
B)
Pressure done
clear
C)
Volume done
clear
D)
Area done
clear
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question_answer78)
Match List-I with List-II and select the correct answer by using the codes given below the lists [NDA 1995] List-I List-II Distance between earth and stars 1. Microns Inter-atomic distance in a solid 2. Angstroms Size of the nucleus 3. Light years Wavelength of infrared laser 4. Fermi 5. Kilometres
A)
Codes a b c d 5 4 2 1 done
clear
B)
3 2 4 1 done
clear
C)
5 2 4 3 done
clear
D)
3 4 1 2 done
clear
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question_answer79)
Unit of impulse is [CPMT 1997]
A)
Newton done
clear
B)
done
clear
C)
done
clear
D)
Joule done
clear
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question_answer80)
Which is not a unit of electric field [UPSEAT 1999]
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
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question_answer81)
The correct value of
on the Kelvin scale is [UPSEAT 2000]
A)
\[273.15K\] done
clear
B)
done
clear
C)
done
clear
D)
done
clear
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question_answer82)
'Torr' is the unit of [RPMT 1999, 2000]
A)
Pressure done
clear
B)
Volume done
clear
C)
Density done
clear
D)
Flux done
clear
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question_answer83)
Which of the following is a derived unit [BHU 2000]
A)
Unit of mass done
clear
B)
Unit of length done
clear
C)
Unit of time done
clear
D)
Unit of volume done
clear
View Solution play_arrow
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question_answer84)
Dyne/cm2 is not a unit of [RPET 2000]
A)
Pressure done
clear
B)
Stress done
clear
C)
Strain done
clear
D)
Young's modulus done
clear
View Solution play_arrow
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question_answer85)
The units of angular momentum are [MP PMT 2000]
A)
\[kg-{{m}^{2}}/{{s}^{2}}\] done
clear
B)
\[Joule-s\] done
clear
C)
\[Joule/s\] done
clear
D)
\[kg-m-{{s}^{2}}\] done
clear
View Solution play_arrow
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question_answer86)
Which of the following is not the unit of energy [MP PET 2000]
A)
Calorie done
clear
B)
Joule done
clear
C)
Electron volt done
clear
D)
Watt done
clear
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question_answer87)
Which of the following is not a unit of time [UPSEAT 2001]
A)
Leap year done
clear
B)
Micro second done
clear
C)
Lunar month done
clear
D)
Light year done
clear
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question_answer88)
The S.I. unit of gravitational potential is [AFMC 2001]
A)
\[J\] done
clear
B)
\[J\text{-}k{{g}^{-1}}\] done
clear
C)
\[J\text{-}kg\] done
clear
D)
\[J\text{-}k{{g}^{-2}}\] done
clear
View Solution play_arrow
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question_answer89)
Which one of the following is not a unit of young's modulus [KCET 2005]
A)
\[N{{m}^{-1}}\] done
clear
B)
\[N{{m}^{-2}}\] done
clear
C)
\[Dyne\ c{{m}^{-2}}\] done
clear
D)
Mega Pascal done
clear
View Solution play_arrow
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question_answer90)
In C.G.S. system the magnitutde of the force is 100 dynes. In another system where the fundamental physical quantities are kilogram, metre and minute, the magnitude of the force is [EAMCET 2001]
A)
0.036 done
clear
B)
0.36 done
clear
C)
3.6 done
clear
D)
36 done
clear
View Solution play_arrow
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question_answer91)
The unit of \[L/R\] is (where \[L\] = inductance and \[R\] = resistance) [Orissa JEE 2002]
A)
\[\sec \] done
clear
B)
\[{{\sec }^{-1}}\] done
clear
C)
Volt done
clear
D)
Ampere done
clear
View Solution play_arrow
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question_answer92)
Which is different from others by units [Orissa JEE 2002]
A)
(a) Phase difference done
clear
B)
Mechanical equivalent done
clear
C)
Loudness of sound done
clear
D)
Poisson's ratio done
clear
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question_answer93)
Length cannot be measured by [AIIMS 2002]
A)
Fermi done
clear
B)
Debye done
clear
C)
Micron done
clear
D)
Light year done
clear
View Solution play_arrow
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question_answer94)
The value of Planck's constant is [CBSE PMT 2002]
A)
\[6.63\times {{10}^{-34}}J\text{-}\sec \] done
clear
B)
\[6.63\times {{10}^{34}}J/\sec \] done
clear
C)
\[6.63\times {{10}^{-34}}kg\text{-}{{m}^{2}}\] done
clear
D)
\[6.63\times {{10}^{34}}kg/\sec \] done
clear
View Solution play_arrow
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question_answer95)
A physical quantity is measured and its value is found to be \[nu\] where \[n=\] numerical value and \[u=\] unit. Then which of the following relations is true [RPET 2003]
A)
\[n\propto {{u}^{2}}\] done
clear
B)
\[n\propto u\] done
clear
C)
\[n\propto \sqrt{u}\] done
clear
D)
\[n\propto \frac{1}{u}\] done
clear
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question_answer96)
Faraday is the unit of [AFMC 2003]
A)
Charge done
clear
B)
emf done
clear
C)
Mass done
clear
D)
Energy done
clear
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question_answer97)
Candela is the unit of [UPSEAT 1999; CPMT 2003]
A)
Electric intensity done
clear
B)
Luminous intensity done
clear
C)
Sound intensity done
clear
D)
None of these done
clear
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question_answer98)
The unit of reactance is [MP PET 2003]
A)
(a) Ohm done
clear
B)
Volt done
clear
C)
Mho done
clear
D)
Newton done
clear
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question_answer99)
The unit of Planck's constant is [RPMT 1999; MP PET 2003; Pb. PMT 2004]
A)
Joule done
clear
B)
Joule/s done
clear
C)
Joule/m done
clear
D)
Joule-s done
clear
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question_answer100)
Number of base SI units is [MP PET 2003]
A)
4 done
clear
B)
7 done
clear
C)
3 done
clear
D)
5 done
clear
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question_answer101)
SI unit of permittivity is [KCET 2004]
A)
\[{{C}^{2}}{{m}^{2}}{{N}^{-1}}\] done
clear
B)
\[{{C}^{-1}}{{m}^{2}}{{N}^{-2}}\] done
clear
C)
\[{{C}^{2}}{{m}^{2}}{{N}^{2}}\] done
clear
D)
\[{{C}^{2}}{{m}^{-2}}{{N}^{-1}}\] done
clear
View Solution play_arrow
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question_answer102)
Which does not has the same unit as others [Orissa PMT 2004]
A)
Watt-sec done
clear
B)
Kilowatt-hour done
clear
C)
eV done
clear
D)
J-sec done
clear
View Solution play_arrow
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question_answer103)
Unit of surface tension is [Orissa PMT 2004]
A)
\[N{{m}^{-1}}\] done
clear
B)
\[N{{m}^{-2}}\] done
clear
C)
\[{{N}^{2}}{{m}^{-1}}\] done
clear
D)
\[N{{m}^{-3}}\] done
clear
View Solution play_arrow
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question_answer104)
Which of the following system of units is not based on units of mass, length and time alone [Kerala PMT 2004]
A)
SI done
clear
B)
MKS done
clear
C)
FPS done
clear
D)
CGS done
clear
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question_answer105)
The unit of the coefficient of viscosity in S.I. system is [J & K CET 2004]
A)
\[m/kg\text{-}s\] done
clear
B)
\[m\text{-}s/k{{g}^{2}}\] done
clear
C)
\[kg/m\text{-}{{s}^{2}}\] done
clear
D)
\[kg/m\text{-}s\] done
clear
View Solution play_arrow
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question_answer106)
The unit of Young?s modulus is [Pb. PET 2001]
A)
\[N{{m}^{2}}\] done
clear
B)
\[N{{m}^{-2}}\] done
clear
C)
Nm done
clear
D)
\[N{{m}^{-1}}\] done
clear
View Solution play_arrow
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question_answer107)
One femtometer is equivalent to [DCE 2004]
A)
\[{{10}^{15}}\,m\] done
clear
B)
\[{{10}^{-15}}\,m\] done
clear
C)
\[{{10}^{-12}}\,m\] done
clear
D)
\[{{10}^{12}}\,m\] done
clear
View Solution play_arrow
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question_answer108)
How many wavelength of \[K{{r}^{86}}\] are there in one metre [MNR 1985; UPSEAT 2000; Pb. PET 2004]
A)
1553164.13 done
clear
B)
1650763.73 done
clear
C)
652189.63 done
clear
D)
2348123.73 done
clear
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question_answer109)
Which of the following pairs is wrong [AFMC 2003]
A)
Pressure-Baromter done
clear
B)
Relative density-Pyrometer done
clear
C)
Temperature-Thermometer done
clear
D)
Earthquake-Seismograph done
clear
View Solution play_arrow