Question

The refractive index of glass is 3/2. If the speed of light in vacuum is 2 x 10 m/s, find
the speed of light in glass.​

Answer 1

Answer:

we know

C/V = n

2 x 10/V = 3/2

V = 4 x 10/3

V = 1.33 x 10m/s

Answer 2

Refractive index, n=3/2

Speed of light in vaccum,c=2*10m/s

Speed of light in medium, v=n*c

=3/2*2*10

=30m/s

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