Question

draw a diagram to explain the principal focus in case of = 1) concave miror 2) convex miror 3) convex lens 4) concave lens

Answer 1

: Light rays that are 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 the principal focus of the concave mirror.

Answer 2

Answer:

Explanation:

: Light rays that are 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 the principal focus of the concave mirror.