Question

speed of light in air and a given transparent medium are 3.0*10^8 m/s and 2.1*10^8m/s respectively calculate the refractive index of the given medium ​

Answer 1

Answer:

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Answer 2

Answer:

PHYSICS

The speed of light in a transparent medium is 2.4 × 10

8

m/s. Calculate absolute refractive index of the medium.

A

1.5

B

0.8

C

1

D

1.25

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ANSWER

The refraction index, n, of a transparent medium is defined as the ratio of speed of light in vacuum to the speed of light in that medium. The formula is n=

v

c

.

where the speed of light c=3×10

8

m/s and v is the speed of light in the desired medium which is given as v=2.4×10

8

m/s.

Therefore, n=

2.4×10

8

m/s

3×10

8

m/s

=1.25.

Hence, the refractive index of the transparent medium is 1.25.

Explanation:

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