Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-numerical-Hard-Class 12

In a double-slit interference experiment, the path difference between the two waves arriving at a point on the screen is 2.5 times the wavelength λ\lambda. Which of the following describes the nature of the interference at this point?

A

Constructive interference resulting in a bright fringe

B

Destructive interference resulting in a dark fringe

C

Neither fully constructive nor fully destructive, intermediate intensity

D

Complete cancellation of light intensity

Correct Answer

Option C

Detailed Explanation

The path difference of 2.5λ\lambda is not an integer multiple of λ\lambda, thus it leads to neither fully constructive nor fully destructive interference, resulting in intermediate intensity.

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