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question_answer1) What are pseudo solids?
question_answer2) What is the cause of rigidity in solids?
question_answer3) Which property of glass enables it to be moulded and blown into various shapes?
question_answer4) Which type of intermolecular force is present in non-polar molecular solids?
question_answer5) What are fluids?
question_answer6) What is the co-ordination number in the cubic close packed (face centred-cubic) structure?
question_answer7) What do you mean by imperfections in solid?
question_answer8) What kind of attractive forces are present in the covalent solid?
question_answer9) What is the number of octahedral and tetrahedral voids per unit cell of cubic close packing (fee)?
question_answer10) NaCl crystals when heated in sodium vapours become yellow. Why?
question_answer11) What is a unit cell?
question_answer12) What is the ratio between radius of a sphere (R) and the radius of the octahedral void (r) in the cubic close packing?
question_answer13) Which types of solids have definite enthalpy of fusion?
question_answer14) Name a salt that can be added to AgCl so as to produce cation vacancy.
question_answer15) Explain the following terms : (a) Ferrimagnetism (b) n-type semiconductor (c) Forbidden zone.
question_answer16) What kind of attractive forces are present in the molecular solids?
question_answer17) Name the type of structure of CsCI.
question_answer18) What is the effect of temperature on conduction of semi conductors?
question_answer19) Name a compound in which Frenkel and Schottky defect are present together.
question_answer20) What is the co-ordination number in the body centred cubic close packed structure?
question_answer21) Are ionic solids electrical conductors or insulators?
question_answer22) What are F centres?
question_answer23) Which types of solids are hard and brittle?
question_answer24) What are the properties of ferromagnets. Give an example of ferromagnets.
question_answer25) What is the radius ratio value for tetrahedral void?
question_answer26) What is anisotropy?
question_answer27) Why is Fe3O4 ferrimagnetic at room temperature but becomes conductor at 850 K?
question_answer28) What are primitive and non-primitive unit cells?
question_answer29) What is the name of unit cell in which atoms are placed at the corners of all 12 edges of a cubic unit cell?
question_answer30) What kind of attractive forces are present in the ionic solids?
question_answer31) What is doping? Why is it done?
question_answer32) Define space lattice.
question_answer33) What happens to a sodium chloride structure when high pressure is applied to it?
question_answer34) What kind of attractive forces are present in the metallic solids?
question_answer35) What causes the conduction of electricity by semiconductors?
question_answer36) Which type of intermolecular force is present in polar molecular solids?
question_answer37) What is Frenkel defect?
question_answer38) Solid solution of group-13 or group-15 impurities with group-14 elements are found to exhibit unusual electric properties. Why?
question_answer39) Zinc oxide is white but becomes yellow-on heating. Why?
question_answer40) What are photovoltaic materials? Give example.
question_answer41) What type of compounds exhibit Schottky defect?
question_answer42) What is total number of atoms per unit cell present in hexagonal close packed arrangement?
question_answer43) What is the coordination number of octahedral voids?
question_answer44) What is isotropy?
question_answer45) How do electrical conductivity of following class of materials vary with temperature? (i) Semiconductor (ii) Metallic conductor (iii) Super conductor.
question_answer46) Which type of motion is possible in solid particles?
question_answer47) What is the maximum radius of a sphere that can be filled in the tetrahedral void of cubic close packing of spheres of radius R without disturbing it?
question_answer48) Why is the Frenkel defect not found in pure alkali metal halides?
question_answer49) The following two graphs represent conductivity as function of temperature. Predict giving reasons, the type of substances which will show these types of curves. (i) (ii)
question_answer50) Which types of solids are soft and brittle?
question_answer51) What are ferromagnetic substances?
question_answer52) What is point defect?
question_answer53) How many atoms per unit cell are present in (i) body centred and (ii) face centred cubic unit cell?
question_answer54) Which type of intermolecular force is present in ice?
question_answer55) Which type of solids have sharp melting point?
question_answer56) Which types of solids have long range ordered arrangement of constituent particles?
question_answer57) What is mean by (i) 12 - 16 compounds and (ii) 13-15 compounds? Give examples.
question_answer58) Zinc oxide is white but becomes yellow-on heating. Why?
question_answer59) Which types of voids are present in a solid crystal?
question_answer60) Which types of solids are called giant molecules?
question_answer61) What may be the difference between phosphorus doped and gallium doped semiconductors.
question_answer62) What is Schottky defect?
question_answer63) Why there is no change in density of a solid due to Frenkel defect?
question_answer64) How is ferromagnetism different from paramagnetism?
question_answer65) What is the effect on the density of a crystal due to Schottky defect?
question_answer66) How many atoms are present per unit cell of primitive cubic unit cell?
question_answer67) Silver halide forms crystals similar to NaCl. Under what condition these changes to CsCI crystals?
question_answer68) KCl crystals when heated in potassium vapours become violet. Why?
question_answer69) Define ferrimagnetism.
question_answer70) Why is graphite used as lubricant?
question_answer71) Define the term amorphous.
question_answer72) Define radius ratio.
question_answer73) Give two reasons of crystal imperfections.
question_answer74) If the radius of anion in an ionic solids is 100 pm, what should be the radius of cation that fits in the (a) cubic hole, (b) octahedral hole, (c) tetrahedral hole?
question_answer75) Why glass panes fixed to windows or doors of old buildings are found to be thicker at the bottom?
question_answer76) What types of defect is produced when NaCl is doped with SrCl2?
question_answer77) What is a void? Name any two voids.
question_answer78) Why do solids have definite volume as well as shape?
question_answer79) How will you differentiate between bcc and fee lattice?
question_answer80) Amorphous solids are isotropic. Why?
question_answer81) Ionic solids are insulator of heat and electricity. Why?
question_answer82) State the difference between Schottky and Frenkel defects.
question_answer83) Why are amorphous solids called pseudo solids or super cooled liquids?
question_answer84) What is the length of the side of unit cell if the radius of an element which crystallizes in a body centred cubic lattice is 75 pm?
question_answer85) Metallic solids are conductors of heat and electricity. Why?
question_answer86) What are crystalline solids?
question_answer87) Schottky defects generate an equal number of cation and anion vacancies while doping produces only cation vacancies and not anion vacancies. Why?
question_answer88) How will you differentiate between hcp and ccp lattice?
question_answer89) Why is diamond extremely hard and insulator?
question_answer90) What is meant by co-ordination number in a solid?
question_answer91) Crystalline solids are anisotropic. Why?
question_answer92) Molecular solids are soft and brittle. Explain.
question_answer93) How a given material can be made amorphous?
question_answer94) Graphite is conductor of electricity. Given reasons.
question_answer95) What are the differences between crystalline and amorphous solids?
question_answer96) What are the solids? What are their characteristics?
question_answer97) What are covalent solids and what are their characteristics?
question_answer98) What are ionic solids? What are their characteristics?
question_answer99) What are the differences between ionic and metallic solids?
question_answer100) What are the differences between covalent and molecular solids?
question_answer101) What are amorphous and crystalline solids? Give example of each type.
question_answer102) What are structural differences between graphite and diamond?
question_answer103) What are molecular solids? What are the characteristics of various types of molecular solids?
question_answer104) How are crystalline solids classified? Give example of each type.
question_answer105) What are the differences between ionic and metallic solids?
question_answer106) Why has 'second' been defined in terms of periods of radiation from Cesium-133?
question_answer107) Derive the SI unit of joule (J) in terms of fundamental units.
question_answer108) What is a coherent system of units?
question_answer109) Do AU and \[{{\text{A}}^{\text{o}}}\] represent the same unit of length?
question_answer110) What is the difference between nm, mN, Nm?
question_answer111) Will five litres of benzene weigh more in summer or winter? Comment.
question_answer112) What is the advantage in choosing the wavelength of light radiation as a standard of length?
question_answer113) Which type of phenomenon can be used as a measure of time? Give three examples.
question_answer114) The terms in column X are somehow related to the terms in columns Y and Z. Match the columns correctly. X Y Z 1. Planck Nuclear constant Mass wave 2. Raoult Angstrom Threshold energy 3. De Broglie Moderator Heavy water 4. Einstein Erg-second Molecular weight 5. Nuclear reactor Vapour pressure lowering \[E=m{{c}^{2}}\] 6. Mass defect Photoelectric effect \[6.626\times {{10}^{-27}}\]
question_answer115) 'The most incomprehensible thing about the world is that it is comprehensible.' Who made these remarks? Give some evidence in support of it.
question_answer116) Science is ever dynamic. There is no final theory in science and no unquestioned authority amongst scientists.
question_answer117) In defining the standard of lengthy we have to specify the temperature at which the measurement should be made. Are we justified in calling length a fundamental quantity, if another physical quantity (temperature) has to be specified in choosing a standard?
question_answer118) Should a scientific discovery which has nothing but dangerous consequences for mankind be made public?
question_answer119) Name some key scientific and technological advances which led to first industrial revolution in England and Europe.
question_answer120) List some key contemporary areas of science and technology responsible for industrial revolution of the present age.
question_answer121) Suggest a distance corresponding to each of the following order of length : (i) \[{{10}^{7}}\,m\] (ii) \[{{10}^{4}}\,m\] (iii) \[{{10}^{3}}\,m\] (iv) \[{{10}^{2}}\,m\] (v) \[{{10}^{-3}}\,m\] (vi) \[{{10}^{-6}}\,m\] (vii) \[{{10}^{-14}}\,m\]
question_answer122) Is the time variation of position shown in Fig. 1(b).5 observed in nature?
question_answer123) The screw of a spherometer moves by 4 mm. when its circular scale is given four complete rotations. If circular scale has 200 divisions, calculate pitch and least count of the spherometer.
question_answer124) When circular scale of a screw gauge carrying 100 divisions is given four complete rotations, the head of the screw moves through 2 mm. Calculate pitch and least count of the screw gauge.
question_answer125) What is the basic principle of alpha particle scattering method for estimating the size of the nucleus?
question_answer126) Mention some repetitive phenomena in nature which could serve as time standards. Which one is most suitable?
question_answer127) Energy density and pressure have the same dimensions. Comment.
question_answer128) Match the physical quantities with dimensions expressed in disarray. (i) Angular momentum (i) \[\left[ {{M}^{-1}}{{L}^{3}}{{T}^{-2}} \right]\] (ii) Latent heat (ii) \[\left[ {{M}^{1}}{{L}^{3}}{{T}^{-3}}{{A}^{-2}} \right]\] (iii) Specific heat (iii) \[\left[ {{M}^{0}}{{L}^{2}}{{T}^{-2}} \right]\] (iv) Joule's mechanical equivalent of heat (iv) \[\left[ {{M}^{0}}{{L}^{2}}{{T}^{-2}}{{K}^{-1}} \right]\] (v) Resistivity (v) \[\left[ {{M}^{0}}{{L}^{0}}{{T}^{0}} \right]\] (vi) Gravitational Constant (vi) \[\left[ {{M}^{1}}{{L}^{2}}{{T}^{-1}} \right]\]
question_answer129) In the formula \[X=3\,Y{{Z}^{2}}\], X and Y have dimensions of capacitance and magnetic induction respectively. The dimensions of Y should be........ Fill in the blanks.
question_answer130) The units of Planck's constant are the same as those of........ which is equal to moment of...... Fill in the blanks.
question_answer131) If \[{{\in }_{0}}\] is electric permittivity of free space and E is electric field, then show that \[{{\in }_{0}}{{E}^{2}}\] has the dimensions of pressure.
question_answer132) Identify the physical quantity x defined as \[x=\frac{IF{{\upsilon }^{2}}}{W{{l}^{3}}}\], where I is moment of inertia, F is force, \[\upsilon \]is velocity, W is work and l is length.
question_answer133) Identify the quantity represented by \[CV/\rho \,{{\in }_{0}}\], where C is capacity, V is potential, \[\rho \] is specific resistance and \[{{\in }_{0}}\] is electric permittivity of free space.
question_answer134) Finding dimensions of resistance R and inductance L, speculate what physical quantities (L/R) and \[\frac{1}{2}L{{I}^{2}}\] represent, where I is current?
question_answer135) Justify L + L = L and L ? L = L
question_answer136) How many ergs are there in 1 kilo watt hour?
question_answer137) Let x and a stand for distance. Is \[\int{\frac{dx}{\sqrt{{{a}^{2}}-{{x}^{2}}}}=\frac{1}{a}{{\sin }^{-1}}\frac{a}{x}}\] dimensionally correct?
question_answer138) Which quantity, in a given formula should be measured most accurately?
question_answer139) 'Problems with accuracy are due to errors'. Is the statement true?
question_answer140) 'Precision describes the limitation of the measuring instrument'. Is the statement false?
question_answer141) 'Poor accuracy involves errors that can often be corrected'. Do you agree?
question_answer142) 'A lack of precision is due to limitation of measuring instrument'. Is it true?
question_answer143) A physical quantity \[x=\frac{{{a}^{2}}{{b}^{-3/2}}}{{{c}^{4}}}\]has a relative error\[\frac{\Delta x}{x}=2\frac{\Delta a}{a}-\frac{3}{2}\frac{\Delta b}{b}-4\frac{\Delta c}{c}\].Is the statement correct?
question_answer144) In a number without decimal, what is the significance of zeros on the right of non-zero digits?
question_answer145) What is the difference between 5.0 and 5.00?
question_answer146) In the expression, surface area = \[4\pi {{r}^{2}}\], the factor 4 is an exact number. How many number of significant figures are there in the factor 4?
question_answer147) The speed of light in air is \[3.00\times {{10}^{8}}m/s\]. The distance travelled by light in one year \[\left( \text{i}.\text{e}.,\text{ 365 days }=\text{3}\text{.154}\times \text{1}{{0}^{\text{7}}}\text{ s} \right)\] is known as one light year. A student calculates one light year \[=9.462\times {{10}^{15}}m\] Do you agree with the student? If not, what should be the correct value of one light year?
question_answer148) If all measurements in an experiment are taken upto same number of significant figures, then which measurement is responsible has maximum error?
question_answer149) If the velocity of light c, the constant of graviation G and Planck's constant h be chosen as fundamentyal units, find the value of a gram, a centimeter and a second in terms of new units of mass, length and time respectively. Given \[\text{c}=\text{3}\times \text{1}{{0}^{\text{1}0}}\text{cm }{{\text{s}}^{-\text{1}}},\text{ G}=\text{6}.\text{67}\times \text{1}{{0}^{-\text{8}}}\text{dyne c}{{\text{m}}^{\text{2}}}{{\text{g}}^{-\text{2}}},\text{ h}=\text{6}.\text{6}\times \text{1}{{0}^{-\text{27}}}\text{ergs}\].
question_answer150) If p represents radian pressure, c represents the speed of light and q represents the radiation energy, per unit area per unit time, then calculate non-zero integers such that \[{{p}^{x}}{{q}^{y}}{{c}^{z}}\] is dimensionless.
question_answer151) Construct a new physical quantity having dimensions of length in terms of universal constants G, c and h. What is it called? What is the order of its value?
question_answer152) Check the correctness of the relation \[c=\frac{1}{\sqrt{{{\mu }_{0}}{{\in }_{0}}}}\]where the symbols have their usual meaning.
question_answer153) Let \[I\] = current through a conductor, R = its resistance and V = potential difference across its ends. According to Ohm's law, product of two of these quantities equals the third. Obtain Ohm's law from dimensional analysis. Dimensional formulae for R and V are \[\text{M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-\text{3}}}{{\text{A}}^{-\text{2}}}\]and \[\text{M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-\text{3}}}{{\text{A}}^{-\text{1}}}\]respectively.
question_answer154) Reynold number (R) determines whether or not the flow of a liquid through a pipe is streamlined. This constant is a combination of velocity (v), density \[\left( \rho \right)\] and coefficient of viscosity \[\left( \eta \right)\]. Given that R varies directly as diameter D of the pipe, derive the formula for R using the method of dimensions.
question_answer155) If C is capacitance, and R is resistance, then calculate the possible units of \[\text{C}{{\text{R}}^{\text{2}}}\].
question_answer156) The radius of a proton is about \[\text{1}{{0}^{-\text{9}}}\] micron and the radius of universe is about\[\text{1}{{0}^{\text{28}}}\text{cm}\]. Name a physical object whose size is approximately half way between these two extremes on a logarithmic scale?
question_answer157) Calculate focal length of a spherical mirror from the following observations : object distance \[\text{u}=\left( \text{5}0.\text{1}\pm 0.\text{5} \right)\text{cm}\] and image distance, \[\text{v}=\left( \text{2}0.\text{1}\pm 0.\text{2} \right)\text{cm}\].
question_answer158) A large fluid star oscillates in shape under the influence of its own gravitational field. Using dimensional analysis, find the expression for period of oscillation (T) in terms of radius of star (R), mean density of fluid \[\left( \rho \right)\] and universal gravitational constant (G).
question_answer159) Four physical quantities are listed in column I. Their values are listed in column II in random order. Match the columns correctly. Column I Column II 1.Thermal energy of air molecule at room temperature 2. Binding energy of heavy nuclei per nucleon 3. X-ray photon energy 4. Photon energy of visible light 0.02 eV 2 eV 1 keV 7 MeV
question_answer160) To study the flow of a liquid through a narrow tube, the following formula is used : \[\eta =\frac{\pi }{8}\frac{{{\Pr }^{4}}}{Vl}\]where letters have their usual meaning. The values of P,r, V and l are 76 cm of Hg col., 0.28 cm, \[\text{1}.\text{2 c}{{\text{m}}^{\text{3}}}{{\text{s}}^{-\text{1}}}\]and 18.2 cm respectively. If these quantities are measured to the accuracy of 0.1 cm of Hg col., 0.01 cm, \[0.\text{1 c}{{\text{m}}^{\text{3}}}{{\text{s}}^{-\text{1}}}\]and 0.1 cm respectively, find the percentage error in the value of h.
question_answer161) Two resistances \[{{\text{R}}_{\text{1}}}=\left( \text{16}\pm 0.\text{3} \right)\]ohm and \[{{\text{R}}_{\text{2}}}=\left( \text{48 }\pm 0.\text{5} \right)\]ohm are connected in parallel. Find the total resistance of the combination and maximum percentage error.
question_answer162) Which of the following measurements is most accurate and which is most precise : (i) 4.00 mm (ii) 4.00 cm (iii) 4.00 m (iv) 40.00?
question_answer163) A voltmeter having least count 0.1 V and an ammeter having least count 0.2 A are used to measure the potential difference across the ends of a wire and current flowing through the wire respectively. If the reading of voltmeter is 4.4 V and reading of ammeter is 2.2 A, then find (i) the resistance of wire with maximum permissible error and (ii) maximum percentage error.
question_answer164) If p represents radian pressure, c represents the speed of light and q represents the radiation energy, per unit area per unit time, then calculate non-zero integers such that \[{{p}^{x}}{{q}^{y}}{{c}^{z}}\] is dimensionless.
question_answer165) If the velocity of light c, the constant of graviation G and Planck's constant h be chosen as fundamentyal units, find the value of a gram, a centimeter and a second in terms of new units of mass, length and time respectively. Given \[\text{c}=\text{3}\times \text{1}{{0}^{\text{1}0}}\text{cm }{{\text{s}}^{-\text{1}}},\text{ G}=\text{6}.\text{67}\times \text{1}{{0}^{-\text{8}}}\text{dyne c}{{\text{m}}^{\text{2}}}{{\text{g}}^{-\text{2}}},\text{ h}=\text{6}.\text{6}\times \text{1}{{0}^{-\text{27}}}\text{ergs}\].
question_answer166) Who discovered the following (i) Absolute temperature (ii) Law of force action between charges?
question_answer167) Fill in the blanks : (i) Lasers involve the process of......... (ii) Computers are based on.......... (iii) Production of hydroelectric power is based on......
question_answer168) Which of the following statements are true/false? (i) Keplar discovered famous theory of relativity. (ii) Nuclear reactors are based on controlled nuclear chain reaction. (iii) Einstein explained photoemission on the basis of Planck's quantum theory.
question_answer169) Why was science called natural philosophy in earlier days?
question_answer170) Name three important discoveries of Physics, which have revolutionized modern chemistry.
question_answer171) What contribution has Physics made in the development of biological sciences?
question_answer172) Why is the cylinder used in defining kg made of platinum indium alloy?
question_answer173) Which of these is largest: astronomical unit, light year and par sec?
question_answer174) Name three units which can be used for measuring large masses.
question_answer175) Which unit can be used for measurement of very small masses?
question_answer176) How many a.m.u. make 1 kg?
question_answer177) What is common between bar and torr?
question_answer178) For a given base line, will a distant star show greater parallax or a near star?
question_answer179) Why parallax method cannot be used for measuring distances of stars more than 100 light years away?
question_answer180) What is the basic difference between inertial mass, gravitational mass and weight of a body?
question_answer181) What is the technique used for measuring large time intervals?
question_answer182) Write the dimensions of each of the following in terms of mass, length, time. (i) Reynold number (ii) Rigidity modulus.
question_answer183) Give two examples each of dimensionless constants and dimensional variables.
question_answer184) Can a quantity have constant value and be dimensionless?
question_answer185) Give three examples of dimensionless variables.
question_answer186) Pressure is defined as momentum per unit volume. Is it true?
question_answer187) In the equation \[y=A\sin \left( \omega t-kx \right)\], obtain the dimensional formula of \[\omega \] and k. Given x is distance and r is time.
question_answer188) The rotational K.E. of a body is given by \[\frac{1}{2}I{{\omega }^{2}}\]. Use this equation to obtain the dimensions of I.
question_answer189) Find the value of x in the relation \[Y=\frac{{{T}^{x}}.\cos \theta .\tau }{{{L}^{3}}}\], where Y is Young's modulus. T is time period, \[\tau \] is torque and L is length.
question_answer190) Name the quantities represented by the dimensional formula\[[{{M}^{1}}{{L}^{2}}{{T}^{-1}}]\]; \[\left[ {{\text{M}}^{\text{1}}}{{\text{L}}^{\text{2}}}{{T}^{-2}} \right]\]; \[\left[ {{\text{M}}^{\text{1}}}{{\text{L}}^{-3}}{{T}^{0}} \right]\].
question_answer191) Choose the pairs of quantities which have same dimensions : Impulse, force, work, momentum, moment of force, tension.
question_answer192) Energy and Young's modulus have the same dimensions, comment.
question_answer193) The dimensions of quantities in one or more of the following pairs are the same. Identify the pair (s). (i) Torque and work (ii) Angular momentum and work (iii) Energy and Young's modulus (iv) Light year and wavelength.
question_answer194) Show that if e is electronic charge, h is Planck's constant, c is velocity of light and is electric permittivity of free space, then \[{{e}^{2}}/{{\in }_{0}}hc\] he is dimensionless.
question_answer195) Find the dimensions of Planck's constant. If its value in cgs system is\[\text{6}\text{.62 x 1}{{0}^{-27}}\text{erg}-\text{sec}\], what will be its value on inks system?
question_answer196) Calculate the dimensions of universal gravitational constant If its value in SI units is \[6.67\times {{10}^{-8}}g\,c{{m}^{3}}{{s}^{-2}}\], what will be its value in cgs system?
question_answer197) The rate of flow (V) of a liquid through a pipe of radius (r) under a pressure gradient (P/l) is given by where is coefficient of viscosity of the liquid. Check whether the formula is correct or not
question_answer198) If the speed of light \[c\left( =\text{3}\times \text{1}{{0}^{\text{8}}}\text{m}/\text{s} \right)\], Planck's constant \[h\left( =\text{6}\text{.6}\times \text{1}{{0}^{-34}}\text{J}-\text{s} \right)\]and gravitational constant \[G\left( =6.67\times {{10}^{-11}}mkx\,units \right)\]be chosen as fundamental units, find out the dimensions and value of unit of mass.
question_answer199) The mass of a body is measured by two persons is \[\text{1}0.\text{23 kg}\] and\[\text{1}0.\text{23 kg}\]. Which is more accurate and why?
question_answer200) \[\text{m}=\text{1}0.\text{23 kg}\] A research worker takes 100 observations in an experiment If he repeats the same experiment by taking 500 observations, how is the probable error affected?
question_answer201) Subtraction of two nearly equal quantities destroys the accuracy. Comment.
question_answer202) Add\[\text{6}\text{.75}\times \text{1}{{0}^{\text{3}}}\text{cm to 4}\text{.52}\times \text{1}{{0}^{\text{2}}}\text{ cm}\].
question_answer203) A substance weighing 5.74 g occupies a volume of\[\text{1}.\text{2 c}{{\text{m}}^{\text{3}}}\]. Calculate its density with due regard to significant digits.
question_answer204) The resistance R is the ratio of potential diff. V and current 7. What is the %age error in R if \[\text{V =}\left( \text{1}00\text{ }\pm \text{ 5} \right)\] volt and \[I=\left( 10\pm 0.2 \right)A\]?
question_answer205) A capacitor of capacitance \[\text{C}=\left( \text{2}.0\text{ }\pm \text{ }0.\text{1} \right)\mu \text{ F}\] is charged t6 a voltage \[\text{V}=\left( \text{2}0\text{ }\pm \text{ }0.\text{5} \right)\text{volt}\]. Calculate the charge Q with error limits.
question_answer206) Which of the following length measurement is most accurate and why? (i) 4.00 cm (ii) 0.004 mm (iii) 40-00 cm.
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