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Monochromatic light of wavelength 500 ~nm is used in Young's double slit experiment. An interference pattern is obtained on a screen. When one of the slits is covered with a very thin glass plate (refractive index =1.5 ), the central maximum is shifted to a position previously occupied by the 4^ th bright fringe. The thickness of the glass-plate is ______ m .

Correct answer

0

Step-by-step solution

aligned & ( -1) t = n & (1.5-1) t =4 500 10⁻⁹ ~m & t =4000 10⁻⁹ ~m & t =4 m aligned

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