Question

If 'n' is the refractive index of second medium, then the expression for critical angle
for first medium is
A. Sin C = 1/n
B. Sin C = Sin 90degree/n. C. Sin C = Sin r
D. None of these

Answer 1

Answer:

c is correct answer....

hope help

Answer 2

$\huge\red{A}\pink{N}\orange{S}\green{W}\blue{E}\gray{R}$

ANSWER = { A } Sin C = = 1/n