What will be the value of the angle of refraction,when the angle of incidence is 0

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The formula for angle of refraction is n1 (sinx)= n2 (siny) , where x and y being angle of incidence and refraction respectively. So here angle of incidence is zero . Sin0=0, hence angle of refraction is also zero.

Answers

2014-04-21T16:03:43+05:30
Refraction is zero because the light beam entering the medium will be at 90 degrees to its surface, so there is no refraction. 
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2014-04-21T16:07:47+05:30
90 degrees without reflection 
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