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A double slit experiment is performed wi...

A double slit experiment is performed with light of wavelength 500 nm. A thin film of thickness 2 mm and refractive index 1.5 is introduced in the path of the upper beam. The location of the central maximum will:

A

Remain unshifted

B

Shift downward by nearly two fringes

C

Shift upward by nearly two fringes

D

Shift downward by ten fringes

Text Solution

Verified by Experts

No. of fringes shifted =Delta/beta` Here `Delta =((mu-1)tD)/d and beta=(lamda D)/d`
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