Answers

2014-04-21T16:38:02+05:30
Light will change its path if the refractive indexes of the 2 mediums are different. if the refractive indexes of two mediums are same, it will not change its path as its speed wont change.
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2014-04-21T16:39:15+05:30
Yes , 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.And hence the light travels without any change of path.
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