Consider a ray of light travelling from a denser to a rarer medium. If it is incident at the critical angle then

Question

Consider a ray of light travelling from a denser to a rarer medium. If it is incident at the critical angle then (A) it will emerge out into the rarer medium (B) it will undergo total internal reflection (C) it will travel along the interface separating the two media (D) it will retrace its path

Tardigrade Admin · Accepted Answer

If a ray of light travelling from a denser to a rarer medium with angle of incidence same as critical angle, the ray will travel along the interface separating the two media.

Q. Consider a ray of light travelling from a denser to a rarer medium. If it is incident at the critical angle then

it will emerge out into the rarer medium

it will undergo total internal reflection

it will travel along the interface separating the two media

it will retrace its path

If a ray of light travelling from a denser to a rarer medium with angle of incidence same as critical angle, the ray will travel along the interface separating the two media.