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With a monochromatic light, the fringe-w...

With a monochromatic light, the fringe-width obtained in a Young’s double slit experiment is 0.133 cm. The whole set- up is immersed in water of refractive index 1.33, then the new fringe-width is

A

0.133 cm

B

0.1 cm

C

1.33 cm

D

0.2 cm

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