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NEET UG PHYSICS MCQ: WAVE OPTICS

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Find the thickness of a plate which will produce a change in optical path equal to half the wavelength

\lambda

of the light passing through it normally. The refractive index of the plate

\mu

is

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Correct option: D

\frac{\lambda }{{2\left( {\mu - 1} \right)}}

Option D (

\frac{\lambda }{{2\left( {\mu - 1} \right)}}

) is correct because it represents the thickness required to introduce an optical path difference of half the wavelength.

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