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NEET UG PHYSICS MCQ: WAVE OPTICS

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In young’s double slit experiment, the fringe pattern is observed on screen placed at a distance D. The slits are illuminated by light of wavelength

\lambda

. The distance from the central point where intensity becomes

\frac{3}{4}th

of the maxima will be

View answer and explanation

Correct option: A

\frac{{\lambda D}}{{6d}}

Option A (

\frac{{\lambda D}}{{6d}}

) is correct because it is derived from the intensity formula in Young's double-slit experiment.

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