Question

what is wavefront and relative orientation of wavefront
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Answer 1

Answer:

Wavefront is a position in electromagnetic, longitudinal or transverse wave where the particles vibrate in the same phase ( coherency).

Wavefront in a point source is concentric sphere .

Wavefronts in a line source is a cylinder.

Wavefronts in an infinitely far source is a plane surface.

Hope you will be able to understand.

Answer 2

Answer:

The locus of all points where wave starting simultaneously from a source reach at the same instant of time and hence the particles at the points oscillat with the same phase, is called a wavelength or wave surface.