Question

the speed of light in water and diamond is 2.2 × 10⁸ m/s and 1.25 × 10⁸ m/s respectively. what is refractive index of :1) water with respect to diamond 2) Diamond with respect to water.
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Answer 1

Answer:

In this case, the refractive index of water with respect to glass is given as :n=

speedoflightinwater(v

2

)

speedoflightinglass(v

1

)

where the speed of light in glass medium v

1

=2×10

8

m/s and speed of light in water medium v

2

=2.2×10

8

m/s.

Therefore, n=

2.2×10

8

m/s

2×10

8

m/s

=0.909.

Hence, the refractive index of the transparent medium is 0.909.