1.

Light enters from air to glass having refractive index 1.50. What isspeed of light in the glass? The speed of light in vacuum is 3 x 10^8 m/s

Answer»

Refractive Index = Speed of light in vaccum/speed of light in medium

1.5 = 3×10^8/speed of light in glass

Speed of light in glass= (3×10^8)/1.5= 2× 10^8 m/s



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