Find the thickness of a plate which will produce a change in optical path equal to half the wavelength λ of the light passing through it normally. The refractive index of the plate is μ
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a
λ4(μ−1)
b
2λ4(μ−1)
c
λ(μ−1)
d
λ2(μ−1)
answer is D.
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Detailed Solution
From, (μ−1)t=nλ, we get t=nλ(μ−1)When nλ=λ2,then t=λ2(μ−1)