What is wane front ? State its relation with ray of light .

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Solution

A wavefront is defined as the continuous locus of all the particles of a medium, which are vibrating in the same phase. These particles vibrate in phase.
On the other hand, wave is the actual disturbance travelling through the medium. It transmits energy through the medium.

relation of wave front with ray is that , rays are always perpendicular to wave front

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