Question

Define the principal focus of a concave mirror.


Plzz ans...​

Answer 1

When a ray of light parallel to the principal axis converges at the mirror and touches the principal axis, that point is called the principal focus.

Answer 2

Answer:

Light rays that parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror This point is known as principal focus of a concave mirror