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A double slit experiment is performed wi...

A double slit experiment is performed with light of wavelength `500nm`. A thin film of thickness `2mum` 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 10 fringes

Text Solution

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The correct Answer is:
C
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ERRORLESS -WAVE OPTICS-SET
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