A) \[\gamma ,\beta ,\alpha \,and\,\gamma ,\beta ,\alpha \,respectively\]
B) \[\gamma ,\beta ,\alpha \,and\,\alpha ,\beta ,\gamma \,respectively\]
C) \[\alpha ,\beta ,\gamma ,\,and\,\alpha ,\beta ,\gamma \,respectively\]
D) \[\alpha ,\beta ,\gamma \,and\,\gamma ,\beta ,\alpha ,\,respectively\]
Correct Answer: B
Solution :
Because of large mass and large velocity, \[\alpha -\]particles have large ionising power. Each \[\alpha -\]particle produces thousands of ions before being absorbed. The P-particles ionise the gas through which they pass, but their ionising power is only \[\frac{1}{100}th\] that of a-particles. y-rays have got small ionising power. Because of large mass, the penetrating power of a-particles is very small, it being \[1/100\]times that to P-rays and \[1/10000\]times that of y-rays. a-particles can be easily stopped by an Aluminium sheet, only \[0.02\,mm\]thick. P-particles have very small mass, so their penetrating power is large, \[\gamma \]-rays have very large penetrating power.
You need to login to perform this action.
You will be redirected in
3 sec
