Published by:
CGP EDU Academic Team
Published on: September 12, 2026
In young's double slit experiment performed using a monochromatic light of wavelength 
, when a glass plate ( 
= 1.5) of thickness x 
is introduced in the path of the one of the interfering beams, the intensity at the position where the central maximum occurred previously remains unchanged. The value of x will be:
Text Solution
Verified by ExpertsThe correct answer is:
B
Path difference at 
.
If the intensity at O remains (maximum)
unchanged, path difference must be n 
.
For n= 1, x = 2
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