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21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya
a
Total internal reflection can occur only if the angle of incidence is greater than critical angle
b
The light ray should travel from rarer medium to denser medium
c
Smooth polished surface is required for total internal reflection to occur
d
Angle of incidence in the denser medium should be less than the critical angle
answer is D.
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