Question

De Broglie wavelength of proton = $λ$ and that of an a particle $2λ$. The ratio of velocity of proton to that of $\alpha$ particle is

• A. $8$
• B. $\frac{1}{8}$
• C. $4$
• D. $\frac{1}{4}$

Answer 1

Answer: (B)

$\frac{1}{8}$

Answer 2

The correct option is (B): $\frac{1}{8}$