In Young's double slit experiment, the fringe width is 
. If the entire arrangement is placed in water of refractive index 
, then the fringe width becomes (in 
):
Text Solution
Verified by ExpertsThe correct answer is:
B
Frings width, 
Refractive index of water, 
The frings width is given by,
(i)
Here, 
is wavelength of light.
is distance between screen and source.
is distance between coherent source.
If the entire arrangement is placed in water then fringes
(ii)
Dividing equation (ii) by (i), we have
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