Question

(7) (A) Give the name of the mirror that
(1) can give real as well as virtual image of an object
(2) will always give virtual image of same size of an object
(3) will always give virtual and diminished image
(B) With the help of ray diagram, explain the use of concave mirror as solar concentrator

Answer 1

Heya

(1) Concave mirror

(2) plane mirror

(3) Convex mirror.

In a concave mirror, all the light rays parallel to the principal axis meet at the focus.

This is the principle used in the making of solar cookers.

Solar cookers are concave in shape. Sun rays fall in a parallel manner on the mirror, and meet at focus.

When a vessel is placed at focal point, it gets heated up.

Answer 2

1) concave mirror ,
2) plane mirror
3)convex mirror