Question

The velocities of two particles A and B are 0.05 and 0.02m/s respectively. The mass of B is five
times the mass of A. The ratio of their de-Broglies wavelength is
1) 2:1
2) 1:4
3) 1:1
4) 4:1​

Answer 1

Explanation:

from de brogli we get Lamda=h/mv

mass of B= 5×mass of A

A/B=(mv)of B/ (mv)of A

=(0.02×5)/0.05

= 2:1