Question

What will be the critical angle? If a ray of light strikes a medium with a refractive index of 1.8

a) 34
b) 50
c) 90
d) 85

Answer 1

Answer:

your answer is 34

Explanation:

$n = \frac{1}{ \sin(c) }$

$\sin(c) = \frac{1}{1.8}$

$\sin(c) = .55$

$c = {sin}^{ - 1} .55$

$c = 33.74$

$ie. \: \: c = 34$

hope this would help you!!

Answer 2

Answer:

Explanation:

I hope u got it..