Tue February 01, 2011 By: Priyanka Kumar
suppose in the question they have asked to find the speed in diamond if the speed of light and r.index is given the actual answer is 1.3 x 10^8

hello mam/sir

Expert Reply
Tue February 01, 2011
Dear student,
Refractive index = velocity of light in vaccum/ speed of light in material or diamond
2.42 = 3 X 10^8/x
x = 3X10^8/2.42 = 1.24 X 10^8m/s
you should not 2 in your answer dear...
because, 3/2.42 = 1.239..
how much does this question carry?
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