A wavefront is a surface | vedclass

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Question

(A) Wavefront: The locus of all particles in a medium,vibrating in the same phase or constant phase,is called a wavefront.The direction of propagation

Vedclass · Accepted Answer

perpendicular to the direction of propagation of light.

Vedclass · Answer

(A) Wavefront: The locus of all particles in a medium,vibrating in the same phase or constant phase,is called a wavefront.The direction of propagation of light (ray of light) is always perpendicular to the wavefront.Every point on the given wavefront acts as a source of a new disturbance called secondary wavelets,which travel in all directions with the velocity of light in the medium.$A$ surface touching these secondary wavelets tangentially in the forward direction at any instant gives the new wavefront at that instant. This is called a secondary wavefront.

$A$ wavefront is a surface

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