NUMERIC RESPONSE
The angular width of the central maximum in a single slit diffraction pattern is 
. The width of the slit is 
. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young's fringes are observed on a screen placed at a distance of 50 cm from the slits. If the fringe width observed is 1 cm , the slit separation (i.e., distance between centres of the slits) is 
.
Text Solution
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NUMERIC RESPONSE
(25)
Given,
The width of the slit 
Distance between slits and screen 
In diffraction,
Let 
be the separation between the two slits Young's fringe width 
We know 
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