Question

Arrange $\mathrm{\alpha },\mathrm{\beta }\mathrm{and}\mathrm{\gamma }$ rays in ascending order with respect to their Penetrating power.

Answer 1

1. Penetrating power is defined as the power (or length) of a beam ray transmitted for a substance.
2. Penetrating power is inversely proportional to wavelength which means the shortest wavelength of all electromagnetic radiation has the greatest penetrating power.
3. $\mathrm{\gamma }$- ray has a shorter wavelength so, it has the highest penetrating power.

Hence, $\mathrm{\alpha },\mathrm{\beta }\mathrm{and}\mathrm{\gamma }$ radiation is arranged in the ascending order with respect to its Penetrating power is $\alpha <\beta <\gamma$.