Reflection of Light

How many internal reflections of light take place in the formation of primary rainbow ?

Does sound follow the same laws of reflection as light does ? Explain.

In total internal reflection, the light travels from

After reflection, the light rays from a point object at the focus of a concave mirror,

For total internal reflection, light must travel

For toat internal reflection, light must travel……………to………….. .

A plane mirror rotating at an angular velocity of 3 radian/s reflects a light beam. The angular velocity of the reflected beam is -