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The wavelength of a certain light in air...

The wavelength of a certain light in air and in a medium are `4560 overset@A` and `3648 overset@A` respectively. The speed of light in air to the speed of light in the medium is

A

1.15

B

1.25

C

1.35

D

1.45

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CHETANA PUBLICATION-Wave Optics-Exercise
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