The X-Y plane be taken as the boundary between two transparent media 
and 
in 
has a refractive index of 
and 
with 
has a refractive index of 
. A ray of light travelling in 
along the direction given by the vector 
, is incident on the plane of separation. The value of difference between the angle of incident in 
and the angle of refraction in 
will be_____ degree.
Text Solution
Verified by Experts15
(15)
As incident vector A makes 
angle with normal 
-axis & refracted vector 
makes 
angle with normal 
- axis with help of direction cosine
Difference between 
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