If `lambda_1 and lambda_2` denote the de-Broglie wavelength of two particles with same masses but charges in the ratio of 1 : 2 after they are accelerated from rest through the same potential difference, then

Options

A. `lambda_1 = lambda_2`
B. `lambda_1 lt lambda_2`
C. `lambda_1 gt lambda_2`
D. none of these

Answer

C

Explanation

`lambda = (h)/(sqrt(2mvV)) , KE = eV, ` same mass