JEE PHYSICS MCQ: WAVE OPTICS

1 Medium

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Analyzing +4 | -1

Assertion: If the phase difference between the light waves emerging from the slits of the Young's experiment is

\pi

-radian, the central fringe will be dark.

Reason: Phase difference is equal to

(2 \pi / \lambda)

times the path difference.

View answer and explanation

Correct option: B

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion because the central fringe is dark due to an initial phase difference of

\pi

, not directly because of the path difference formula.

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