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in Physics by (61.3k points)

In a Young double slit experiment the aperture screen distance is 2 m. The fringe width is 1 mm. Light of 600 nm is used. If a thin plate of glass (μ =1.5) of thickness 0.06 mm is placed over one of the slits, then there will be a lateral displacement of the fringes by: 

(a)  0 cm

(b)  5 cm

(c)  10 cm

(d)  15 cm 

1 Answer

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Best answer

Correct option  (b) 5 cm

Explanation:

When a glass plate of width t and refractive index µ is kept in path of one ray say S2P then the fringe shift n is given as

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