Question

light enters from air to glass having reflective index 1.5 what is the speed of light in vacuum is 3into 10 tace 8 ms​

Answer 1

vel. of light in VACCUM =c=3×10^8m/s

vel. of light in glass =v= c/ref.index=3×10^8/1.5 =2×10^8m/s

Answer 2

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