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The speed of light through diamond (mu0 ...

The speed of light through diamond `(mu_0 = 2.4) is 1.25 xx 10^8 m//sec`. The speed of light in air `(mu_n = 1.0)` and glass `(mu _ v = 1.5)` in (m/sec) respectively are.

A

`3xx 10^8 and 1.25 xx 10^8`

B

`3 xx 10^8 and 2 xx 10^8`

C

`3 xx 10^8 and 2.5 xx 10^8`

D

`2.5 xx 10^8 and 3 xx 10^8`

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