In figure, the optical fiber is 
long andhas a diameter of 
. If a ray of lightis incident on one end of the fiber at angle 
the number of reflections it makes beforemergingfrom the other end is close to:
(refractive index of fiber is 
and 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2019
Using Snell's law of refraction,
Number of reflections 
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