Question

$AB$ is the incident wavefront while $CD$ is the reflected wavefront. The arrow in the figures show the direction of propagation of light. Which of the following options show the correct pair of incident and reflected wavefronts, along with the correct depiction of direction of propagation of light?

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

We know that, the direction of propagation of light is always perpendicular to that of the wavefront.

For the incident wavefront $AB$, the reflected wavefront $CD$ can be drawn as follows.


Hence, option $\left(C\right)$ is the correct answer.