Question

If light of wavelength of 750 nm is incident at interface of a medium of refractive index of n_1= 1.5 and another medium of refractive index of n_2= 1.Calculate the angle at which the penetration depth of evanescent field in 2nd medium will be minimum? (in deg.)
41.8
61.8
43
45​

Answer 1

Answer:

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Explanation:

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