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Atomic and Nuclear Physics


1. 

Atom bomb is based on the principle of

Answer : B. Nuclear fission

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2. 

Which of the following waves/ rays are produced by nuclear changes in the atom?

Answer : D. gamma rays

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3. 

Match List I correctly with List II and select your answer using the codes given below:

List I List II
a) Bohr 1) Neutron
b) Einstein 2) Model of the hydrogen atom
c) Chadwick 3) matter waves
d) De Broglie 4) Apparatus for measuring angles

Answer : C. 2 4 1 3

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4. 

The size of the atomic nucleus is

Answer : A. 10-14 m

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5. 

Elements having different atomic number but same atomic weight are called

Answer : B. Isobars

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6. 

Nucleus of an atom has

Answer : C. protons and neutrons

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