Question

concave mirror are used in solas devices ​

Answer 1

Answer:

Concave mirrors are used in solar furnaces, because concave mirrors are the only type of mirror that reflects light in toward a single focal point. A flat mirror does not have a focal point. It does regular reflection off all of its points. ... The light will reflect up and away from the focal point of a convex mirror.

Answer 2

Answer:

Bcoz it is the only type of mirror that reflect light towqrd a single focal