A wavefront is propagated………….. .

Wavefronts

If a spherical wavefront is propagated up to infinite distance, then a part of that wavefront is called _________wave front [fill in the blank ].

A plane wavefront is propagating in a medium. Which of the following is true?

Verify Snell's law of refraction when a plane wavefront is propagating from denser to a rarer medium.

As a plane wavefront propagates, its radius of curvature

State the principle,which helps us to determine the shape of the wavefront at a later time from its given shape at any time.Apply this principle to Show that a spherical/plane wavefront continues to propagate forward as a sherical/plane wave front.

Wavefront means

Wavefront means

A sperical wavefront propagating in a medium changes into