Define the principle focus of a concave mirror. Write the uses of a convex mirror.


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.

Use of convex mirror:

  • Used inside buildings such as large offices, stores, and hospitals to see people around the corner so as to avoid accidents.

  • Used as a rear-view mirror in vehicles and automobiles.

  • Used for security purposes in many places such as ATMs.

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