In Young's double slit experiment, fringes of width
are produced on a screen kept at a distance of
from the slit. When the screen is moved away by
, fringe width changes by
. The separation between the slits is
. The wavelength of the light used is
.
Text Solution
Verified by ExpertsThe correct answer is:
B
: 
Subtract (ii) from (i), we get

Substituting the given values, we get

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