Answers

2016-02-22T21:39:40+05:30
Refractive index is given by, n = 1/Sin ic , where ic is critical angle = 300
So, n = 2
As, n = c/v , where c - speed of light in vacuum and v is the speed of light in medium.
So,  speed of light in given medium (v)  = c/n = 1.5 X108 m /sec
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