Published by:
CGP EDU Academic Team
Published on: September 12, 2026
In Young's double slit experiment, monochromatic light of wavelength 
is used. The slits are 
apart and screen is placed at 
away from slits. The distance from the centre of the screen where intensity becomes half of the maximum intensity for the first time is_______ 
Text Solution
Verified by ExpertsThe correct answer is:
125
(125) Let intensity of light on screen due to each slit is 
So internity at centre of screen is 
Intensity at distance y from centre-
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