List of top Physics Questions on Nuclear physics asked in VITEEE

Two radioactive materials \(x_1\) and \(x_2\) have decay constants \(10\lambda\) and \(\lambda\) respectively. Initially they have the same number of nuclei, then the ratio of the number of nuclei of \(x_1\) to that of \(x_2\) after a time \(t\) will be \(1/e\). The value of \(t\) is
\(^{234}\)U has 92 protons and 234 nucleons total in its nucleus. It decays by emitting an alpha particle. After the decay it becomes
A certain radioactive material \(_x^AX\) starts emitting \(\alpha\) and \(\beta\) particles successively such that the end product is \(_{Z-3}^{A-8}\)A. The number of \(\alpha\) and \(\beta\) particles emitted are respectively
The radioactivity of a certain material drops to \(\frac{1}{16}\) of the initial value in 2 hours. The half-life of this radionuclide is
An observer 'A' sees an asteroid with a radioactive element moving away at a speed \(0.3c\) and measures the radioactive decay time to be \(T_A\). Another observer 'B' is moving with the asteroid and measures its decay time as \(T_B\). Then \(T_A\) and \(T_B\) are related as
The radius of nucleus is
Radio carbon dating is done by estimating in specimen
Ionization power and penetration range of radioactive radiation increases in the order
The half-life of a radioactive element is 3.8 days. The fraction left after 19 days will be
The velocity, \( v \), at which the mass of a particle is double its rest mass is:
The difference between the rest mass of the nucleus and the sum of the masses of the nucleons composing a nucleus is known as:
The half-life period of Radium is 3 minutes. Its decay constant is:
The neutrino has mass and neutron fall under the group of:
How much energy is produced, if 2 kg of a substance is fully converted into energy?
'Pair production' involves conversion of a photon into: