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Grade: 11
        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. 
5 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
							Sol. Let, t = thickness of the plate
Given, optical path difference = (μ – 1)t = λ/2
⇒ t = λ/2(μ – 1)

						
5 years ago
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