Question

estion No. 136
n electron initially at rest falls through a potential difference of 16 V. The De Broglie wavelength of the electron is nearly
(A) 0.3 A
(B) 3A
(C) 0.03 A
(D) 30 A

Answer 1

Explanation:

use the formula of lemda = h/root (2 MeV)