A plane wavefront is propagating from a rarer into a denser medium. Use Huygens principle to show the refracted wavefront and verify Snell's law.

Wavefront and Huygens principle

Huygen's Principles and Wavefronts

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

A sperical wavefront propagating in a medium changes into

As a plane wavefront propagates, its radius of curvature

Using Huygens' principle, establish the law of reflection.

a) Define a wave front. b) Draw the diagram to show the shape of plane wave front as they pass through (i) a thin prism and (ii) a thin convex lens. State the nature of refracted wave front. c) Verify Snell’s law of refraction using Huygens’s principle

when a wave is propagated from rarer medium ot denser medium. Which of the following will remain unchanged?