In a Young’s double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is dipped in water of refractive index 4/3 without disturbing the arrangement, the new fringe width will be:

In a Young’s double slit experiment, the fringe width is found to be

1.	In a Young’s double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is dipped in water of refractive index 4/3 without disturbing the arrangement, the new fringe width will be:
A.	0.30 mm
B.	0.40 mm
C.	0.53 mm
D.	0.2 mm
Answer» B. 0.40 mm

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In a Young&rsquo;s double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is dipped in water of refractive index 4/3 without disturbing the arrangement, the new fringe width will be:

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In a Young’s double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is dipped in water of refractive index 4/3 without disturbing the arrangement, the new fringe width will be: