Answers

2016-01-13T21:01:22+05:30
Let refractive index of glass be n n=1.5 Speed of light=c=3×10^8 m/s Let velocity of light in glass be v We know, n=c/v So v=c/n V=3×10^8 / 1.5 =2×10^8 m/s
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2016-01-13T22:15:51+05:30
Please see the attached document ..............
i hope it helps...........
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