hello mam/sir

Asked by priyanka1995 | 31st Jan, 2011, 10:19: PM

Expert Answer:

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 = 1.23 X 10^8m/s
Hope this helps.
Thanking you

Answered by  | 1st Feb, 2011, 10:24: AM

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