If a ray of light in a denser medium enters into a rarer medium at an angle of incidence 
the angle of reflection and reflection are respectively 
If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is
a)
b)
c)
d)
If a ray of light in a denser medium enters into a rarer medium at an angle of incidence the angle of reflection and reflection are respectively If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is
a)
b)
c)
d)
Question ID - 152369 | SaraNextGen Top Answer
If a ray of light in a denser medium enters into a rarer medium at an angle of incidence the angle of reflection and reflection are respectively If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is
a)
b)
c)
d)
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If a ray of light in a denser medium enters into a rarer medium at an angle of incidence |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
Here 
So, 
But 
.png)
Where 
is the critical angle.
So, 
127 votes
Answer Link
127