A narrow, paraxial beam of light is converging towards a point l on a screen. A plane parallel plate of glass of thickness t, and refractive index μ is introduced in the path of the beam. The convergence point is shifted by t(1 - 1/μ) away.
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This is given by: d = l - (t(1 - 1/mu ) + t(1 + 1/mu )) Show more…
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