Question

Concave mirrors are used in torchlight as a reflector.why?

Answer 1

Explanation:

Concave mirrors are used as reflectors in torchlight because as per the rules of image formation by a concave mirror when an object is placed at focus the image is formed parallel to the principal axis, as a result, a parallel beam of light rays are formed due to its parabolic shape.

Answer 2

Answer:

Concave mirrors are used as a torchlight reflector due to its ability to diverge light.Diverging of torchlight increases the area under light hence increases visibility even further