A plane wave is incident on a concave mirror of radius R. The shape of the reflected wavefront will be
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → converging spherical
For a concave mirror:
- A plane wave incident on a concave mirror converges after reflection.
- The reflected wavefront becomes spherical and converging, with the center of curvature at the focal point of the mirror.
Answer: Reflected wavefront is spherical and converging