NEETPhysics-Wave Optics

NEET Physics Interference MCQ Question

Type: MCQ-numerical-Medium-Class 12

In Young’s double slit experiment, light of wavelength λ passes through the double-slit and forms interference fringes on a screen 1.2 m away. If the difference between 3rd3^{rd} order maximum and 3rd3^{rd} order minimum is 0.18 cm and the slits are 0.02 cm apart, then λ is

A

1200 nₘ

B

450 nₘ

C

600 nₘ

D

300 nₘ

Correct Answer

Option B

Detailed Explanation

The wavelength can be calculated using the fringe width formula and the given parameters.

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