question_answer 1)
A neutral atom (Atomic no. > 1) consists of [CPMT 1982]
A)
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B)
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C)
done
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D)
done
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question_answer 2)
The nucleus of the atom consists of [CPMT 1973, 74, 78, 83, 84; MADT Bihar 1980; DPMT 1982, 85; MP PMT 1999]
A)
done
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B)
done
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C)
done
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D)
done
clear
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question_answer 3)
The size of nucleus is of the order of [CPMT 1982; MP PMT 1991]
A)
done
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B)
done
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C)
done
clear
D)
done
clear
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question_answer 4)
Positive ions are formed from the neutral atom by the [CPMT 1976]
A)
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B)
done
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C)
done
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D)
done
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question_answer 5)
The electron is [DPMT 1982; MADT Bihar 1980]
A)
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B)
done
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C)
done
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D)
done
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question_answer 6)
Who discovered neutron [IIT 1982; BITS 1988;CPMT 1977; NCERT 1974; MP PMT 1992; MP PET 2002]
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B)
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C)
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D)
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question_answer 7)
The ratio of charge and mass would be greater for [BHU 2005]
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B)
done
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C)
done
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D)
done
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question_answer 8)
Magnitude of K.E. in an orbit is equal to [BCECE 2005]
A)
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B)
done
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C)
done
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D)
done
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question_answer 9)
The density of neutrons is of the order [NCERT 1980]
A)
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B)
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C)
done
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D)
done
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question_answer 10)
The discovery of neutron becomes very late because [CPMT 1987; AIIMS 1998]
A)
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B)
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C)
done
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D)
done
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question_answer 11)
The fundamental particles present in the nucleus of an atom are [CPMT 1983, 84]
A)
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B)
done
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C)
done
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D)
done
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question_answer 12)
The order of density in nucleus is [NCERT 1981, CPMT 1981, 2003]
A)
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B)
done
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C)
done
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D)
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question_answer 13)
Cathode rays are [JIPMER 1991; NCERT 1976]
A)
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B)
done
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C)
done
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D)
done
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question_answer 14)
Number of neutron in \[{{C}^{12}}\] is [BCECE 2005]
A)
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B)
done
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C)
done
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D)
done
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question_answer 15)
Heaviest particle is [DPMT 1983; MP PET 1999]
A)
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B)
done
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C)
done
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D)
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question_answer 16)
Penetration power of proton is [BHU 1985; CPMT 1982, 88]
A)
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B)
done
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C)
done
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D)
done
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question_answer 17)
An elementary particle is [CPMT 1973]
A)
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B)
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C)
done
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D)
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question_answer 18)
The nucleus of helium contains [CPMT 1972; DPMT 1982]
A)
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B)
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C)
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D)
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question_answer 19)
Which is correct statement about proton [CPMT 1979; MP PMT 1985; NCERT 1985; MP PET 1999]
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B)
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C)
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D)
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question_answer 20)
Cathode rays are made up of [AMU 1983]
A)
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B)
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C)
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D)
done
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question_answer 21)
Anode rays were discovered by [DPMT 1985]
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B)
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C)
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D)
done
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question_answer 22)
The radius of an atom is of the order of [AMU 1982; IIT 1985; MP PMT 1995]
A)
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B)
done
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C)
done
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D)
done
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question_answer 23)
Neutron possesses [CPMT 1982]
A)
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B)
done
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C)
done
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D)
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question_answer 24)
Neutron is a fundamental particle carrying [CPMT 1990]
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B)
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C)
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D)
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question_answer 25)
Cathode rays have [CPMT 1982]
A)
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B)
done
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C)
done
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D)
done
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question_answer 26)
The size of nucleus is measured in [EAMCET 1988; CPMT 1994]
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B)
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C)
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D)
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question_answer 27)
Which phrase would be incorrect to use [AMU (Engg.) 1999]
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B)
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C)
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D)
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question_answer 28)
Which one of the following pairs is not correctly matched [MP PET 2002]
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B)
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C)
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D)
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question_answer 29)
Proton was discovered by [AFMC 2004]
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B)
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C)
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D)
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question_answer 30)
The minimum real charge on any particle which can exist is [RPMT 2000]
A)
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B)
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C)
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D)
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question_answer 31)
The nature of anode rays depends upon [MP PET 2004]
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B)
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C)
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D)
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question_answer 32)
One would expect proton to have very large [Pb. CET 2004]
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B)
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C)
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D)
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question_answer 33)
The mass of a mol of proton and electron is
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B)
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C)
done
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D)
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question_answer 34)
The average distance of an electron in an atom from its nucleus is of the order of [MP PET 1996]
A)
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B)
done
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C)
done
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D)
done
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question_answer 35)
The mass of 1 mole of electrons is [Pb. CET 2004]
A)
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B)
done
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C)
done
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D)
done
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question_answer 36)
The ratio of specific charge of a proton and an \[\alpha \]-particle is [MP PET 1999]
A)
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B)
done
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C)
done
clear
D)
done
clear
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question_answer 37)
Ratio of masses of proton and electron is [BHU 1998]
A)
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B)
done
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C)
done
clear
D)
done
clear
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question_answer 38)
Splitting of signals is caused by [Pb. PMT 2000]
A)
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B)
done
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C)
done
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D)
done
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question_answer 39)
The proton and neutron are collectively called as [MP PET 2001]
A)
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B)
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C)
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D)
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question_answer 40)
Which of the following has the same mass as that of an electron [AFMC 2002]
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B)
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C)
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D)
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question_answer 41)
What is the ratio of mass of an electron to the mass of a proton [UPSEAT 2004]
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B)
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C)
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D)
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