Define a wave front .

Which of the following generates a plane wave front ?

Using Huygens principle, show that the angle of incidence is equal to angle of reflection during a plane wave front reflected by a plane surface.

In which of the following the interference is NOT produced by the division of wave front ?

The nature of the wave front associated with a parallel beam of light is

The correct relation between the wave front and the ray of light is The ray of light :

Which of the following is correct relation between the wave front and the ray of light ? The ray of light:

Define Wave number.