The diagram above shows an incident ray A, inclined at angle...
The diagram above shows an incident ray A, inclined at angle of 50o to the interface CB. The ray OB is found to lie along the surface. What is the refractive index of the medium X with respect to air?
A.
sin50o/sin40o
B.
sin40osin50o
C.
sin90o/sin50o
D.
sin40o/sin90o
E.
sin90o/sin40o
Correct answer is E
No explanation has been provided for this answer.
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