An electromagnetic radiation of frequenc...

An electromagnetic radiation of frequency v ,wave-length `gamma`,travelling with velocity c in air ,enters a glass slab of refractive index `mu`.the frequency,wavelegth and velocity of light in the glass slab will be respectively

A

`v/mu ,gamma/mu` and `c/mu`

B

`v, gamma/mu` and `c/mu`

C

`v,2 gamma ` and `c/mu`

D

`(2v)/mu , gamma/mu`and c.

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