The de Broglie wavelength...|MODERN PHYSICS|JEEMAIN 2021

JEE MAIN 2021

24-02-2021 S2

Question

The de Broglie wavelength of a proton and a-particle are equal. The ratio of their velocities is :

Select the correct option:

A

4 : 3

B

4 : 1

C

4 : 2

D

1 : 4

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

λ = h / mv λₚ = λα mₚvₚ = mαvα mₚvₚ = 4mₚvα (mα = 4mₚ) vₚ / vα = 4

Question Tags

JEE Main

Physics

Easy

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