When light is reflected from a mirror a change occurs in its :

When light travels from air to glass a change occurs in its

When the light is reflected from the surface of the mirror, its speed and wavelength will

A light wave is reflected from a mirror. The incident and reflected waves superimpose to form stationary waves. But no nodes and antinodes are seen. Why?

A ray of light is incident on a plane mirror at an angle of 40^@ with respect to surface normal. When it gets reflected from the mirror, it undergoes a deviation of