Question

a ray of light entering from air to water (u=1.33)is partly reflected and partly refracted .if the reflected and refracted rays are at right angles to each other ,the angle of refraction
a)
$\frac{1}{sin} \frac{4}{3}$
b)
$\frac{1}{sin} \frac{2}{3}$

c)
$\frac{1}{sin} \frac{2}{ \sqrt[]{13} }$

if u answer correctly with steps then
​

Answer 1

Answer:

answer of question is b

Answer 2

Answer:

ya option b is the correct answer