Question

The ratio of de-Broglie wavelength of an $\alpha$ particle and a proton accelerated from rest by the same potential is $\frac {1}{\sqrt 𝑚}$ , the value of $m$ is-

• A. 16
• B. 4
• C. 2
• D. 8

Answer 1

Answer: (D)

8

Answer 2

The correct option is (D): 8.