Question

Which of the following is/are the correct applications of a concave mirror?

• A. Used as shaving mirrors
• B. Used in headlights of vehicles.
• C. Used as rear-view mirrors.
• D. Used in search-lights.

Answer 1

Answer: (A), (B), (D)

Used in search-lights.

Concave mirror is used as shaving mirror because it produces a virtual, erect and magnified image of our face.

When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity.

Concave mirrors are used in search lights and torches so that we have a more focused light beam which will not diverge out and hence help in searching.