cse • paper_1 • waves_oscillations
[UPSC CSE 1998] Interference (Q216, 20M)
Calculate the minimum plate separation in a Fabry-Perot interferometer to obtain free spectral range of 0.05\text{\AA} in the wave length region 5000\text{\AA}. Calculate also the smallest resolvable wavelength difference for reflectivity of 0.95.
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