1.
The binding energy of a nucleus is maximum for nuclei near
2.
The source of energy in nuclear fission is
4.
Assertion (A): The activity of a radioactive sample decreases with time. Reason (R): The number of undecayed nuclei decreases continuously.
5.
Assertion (A): Gamma rays have the highest penetrating power among nuclear radiations. Reason (R): Gamma rays are uncharged electromagnetic waves.
6.
The SI unit of decay constant is
7.
The ratio of neutron number to proton number generally increases for
8.
The radius of a nucleus depends upon
9.
Which nucleus is expected to have the greatest stability?
10.
The energy released in nuclear reactions is due to
11.
The graph of radioactive decay (Number of nuclei vs Time) is
12.
Which one of the following is not a property of gamma rays?
13.
A nucleus with higher binding energy per nucleon is generally
14.
Nuclear density is approximately
15.
Assertion (A): Binding energy increases the stability of a nucleus. Reason (R): A larger binding energy means more energy is required to break the nucleus.
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