Question

explain critical angle​

Answer 1

Answer:

it's the angle of incidence of light in the denser medium corresponding to which the angle of refraction in the rarer medium is 90 degree.

hope it helps

please mark as brainliest

Answer 2

$\bf\large\underline\red{Answer:-}$

➤ The angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.

❒_____________________