Use of cancave mirror;
(i) Concave mirrors are commonly used in torches, search-lights and vehicles headlights to get powerful parallel beams of light.
(ii) They are often used as shaving mirrors to see a larger image of the face.
(iii) Concave mirrors are used to see large images of the teeth of patients by the dentists.
(iv) Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces.
-Answered by Akki chauhan On 14 January 2019:09:51:10 AM