1.

Light enters from air to glass. If refractive index of glass is 1.5 and speed of light in air 3 x 108 m/s . Then speed of light in glass will be (A) 4.5 x 108 m/s(B) 3.0 x 108 m/s (C) 1.5 x 108 m/s (D) 2.0 x 108 m/s

Answer»

(D) 2.0 x 108 m/s



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