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The refractive index of kerosene is …

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The refractive index of kerosene is 1.54 and the refractive index of rock salt is 1.54 .when light travel from rock salt to kerosene how is part deveated

Posted by Bharath Sankar 6 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 4 months ago

Absolute Refractive index =n=Speed of light in vacuum/Speed of light in medium
n=C/V
So The refractive index of Rock salt is 1.54 That means
1.54=Speed of light in vacuum/Speed of light in Rock salt
So, Speed of light in Rock salt is 1/1.54 times speed of light in vacuum.
Therefor Speed of light in Rock salt is less [1.94 x 10⁸m/s ] compared to speed of light in vacuum =C = 3 x 10⁸ m/s

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