Question

4. ਸਮਤਲ ਦਪਣ ਦੀ ਫੋਕਸ ਦੂਰੀ ਕਿੰਨੀ
ਹੁੰਦੀ ਹੈ? What is the focallength
of plane mirror?​

Answer 1

Answer:

The focal length of a plane mirror is infinite. When parallel rays fall on a mirror surface, they are brought to a point after reflection.

Explanation:

Focal Length - The distance between the pole P of the concave mirror and the focus F is the focal length of the concave mirror. Thus, the focal length of a concave mirror can be estimated by obtaining a 'Real image' of a distant object at its focus