Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

A proton and a triton are accelerated from rest through a potential V. The ratio of their de Broglie wavelength is:

Options:

1 : 1

1 : 2

1 : $\sqrt{2}$

$\sqrt{3}$ : 1

Correct Answer:

$\sqrt{3}$ : 1

Explanation:

The correct answer is Option (4) → $\sqrt{3}$ : 1

de-Broglie wavelength of a charge moving in a electric field

$\lambda=\frac{h}{\sqrt{2 m q V}}$

Mass of triton = 3 (mass of proton)

$\frac{\lambda_1}{\lambda_2}=\sqrt{3}: 1$