What is meant by:
- Principal focus of a convex mirror.
- Focal length of a convex mirror?
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- Principal focus of a convex mirror: The principal focus of a convex mirror is a point on its principal axis from which a beam of light rays, initially parallel to the axis, appears to diverge after being reflected from the convex mirror.
- Focal length of a concave mirror: The focal length of a convex mirror is the distance from the pole (P) to its principal focus (F).
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