JEE Previous Year Question
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 ), the central maximum is shifted to a position previously occupied by the bright fringe. The thickness of the glass-plate is________ .
Topic: JEE PYQ
Answer: 4. Full step-by-step solution below.
Correct answer: 4
Solution
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