The speed oflight in media 
and 
are 
and 
respectively. A ray of light enters from medium 
to 
at an incidence angle 
. Ifthe ray suffers total internal reflection, the value of 
is
A
Equal to 
B
Equal to or less than 
C
Equal to or greater than 
D
Less than 
Text Solution
Verified by ExpertsThe correct answer is:
C
: Refractive index for medium 
is
Refractive index for medium 
is
For total internal reflection, 
where 
angle of incidence, 
critical angle
But 
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