Question

light enters from air into glass having refractive index 1.50 what is speed of light in glass the speed of light in vacuum is 3x 10 power of 8​

Answer 1

Answer:

Explanation:

Given parameters

Speed of light in vacuum (c) = 3 × 108 ms-1

Refractive index of glass (ng) = 1.50

Refractive index of a medium  = Speed of light in vacuum/Speed of light in the medium

Refractive index of glass = Speed of light in vacuum/Speed of light in the glass

Speed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glass

v = c/ng

v = (3 × 108)/1.50

v = 2 × 108 ms-1

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