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Light of wavelength 500nm is used to for...

Light of wavelength `500nm` is used to form interference pattern in Young's double slit experiment. A uniform glass plate of refractive index `1.5` and thickness `0.1mm` is introduced in the path of one of the interfering beams. The number of fringes which will shift the cross wire due to this is

A

100

B

200

C

300

D

400

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The correct Answer is:
A
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