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The speed of light in an …

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The speed of light in an unknown medium is measured to be 2.76 x 108 m/s. What is the index of refraction of the medium?

Posted by Aakriti Rustagi 5 years ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years ago

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= c/v

where the speed of light c=3×10⁸m/s and v is the speed of light in the desired medium which is given as v=2.4×10⁸m/s.

Therefore, n=3×10⁸m/s/ 2.4×10⁸m/s=1.25.

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

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