Question

State two uses of a concave mirror with a proper diagram.

Answer 1

1. Reflector: Concave mirrors are used in motor headlights, torchlights, etc. to produce a parallel beam of light. Reflector

A bulb is placed at the center of a concave mirror. The beam of light from the bulb after reflecting from the concave mirror goes as a parallel beam. This parallel beam of light illuminates the road ahead of the vehicle.


2. Solar cookers: When a parallel beam of sunlight falls on a concave mirror, this beam is concentrated to a particular location. As a result of this, the temperature of an object ( say a container of uncooked food) placed at that particular location increases. Hence the food in the container is cooked.
Solar cooker