List of top Physics Questions on Nuclear physics asked in NEET (UG)

Select the correct statements among the following:
A. Slow neutrons can cause fission in \( \frac{235}{92}U \) more effectively than fast neutrons.
B. \( \alpha \)-rays are Helium nuclei.
C. \( \beta \)-rays are fast moving electrons or positrons.
D. \( \gamma \)-rays are electromagnetic radiations with wavelengths larger than X-rays.
Choose the answer from the options given below:

\(^{290}_{82}X\stackrel{\alpha}{\rightarrow}Y\stackrel{e^+}{\rightarrow}Z\stackrel{\beta^-}{\rightarrow}P\stackrel{e^-}{\rightarrow}Q\)
In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are :

A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is:

In the given nuclear reaction, the element X is: 22 11 Na → X + x₂ + v

A nucleus with mass number $240$ breaks into two a fragments each of mass number $120$, the binding energy per nucleon of unfragmented nuclei is $7.6\, MeV$ while that of fragments is $8.5\, MeV$. The total gain in the Binding Energy in the process is :

The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be

A radioactive nucleus \(_{Z}^{A}\textrm{X}\) undergoes spontaneous decay in the sequence \(_{Z}^{A}\textrm{X}\)\(\rightarrow\)_Z-1B\(\rightarrow\)_Z-3C\(\rightarrow\)_Z-2D, where Z is the atomic number of element X. The possible decay particles in the sequence are

The energy equivalent of 0.5 g of a substance is: