Sketch the wavefronts corresponding to converging rays.

Sketch the wavefronts corresponding to diverging rays.

Sketch the emergent wavefront.

What is wavefront?

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 Derive Snell's law of refraction by drwing the refracted wavefront corresponing to a plane wavefront incident on the boundary separating a rarer medium from a denser medium.

Sketch the region for |y|==sinx.

Sketch the curve y=x^3 .

Define the wavefront of light.

Define the term 'wavefront'.

Define the wavefront of light.