Question

An alpha particle is projected onward a gold film with energy 5 mega electron volt.calculate the distance from nucleus of the gold to a point where alpha particle looses all its kinetic energy?

Answer 1

Hi Hima

Here is your answer

K.E. = (A-4)Q/A, gives the kinetic energy from Q-value and mass number,A of mother nuclei,

Substituting the values,

48A = (A-4)50

=> 2A = 200

=> A = 100

Hope it helps