Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Monochromatic light of wavelength 
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 ______ 
.
Text Solution
Verified by ExpertsThe correct answer is:
4
(4) 
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