Question

Aayan, a student of class X using a mirror brought sunlight in the form of a sharp spot

of light on a black paper. The black paper begins to burn after some time.
(a) Name the type of mirror used by Aayan.

(b) Draw the ray diagram to show the spot of light on the black paper.

(c) What is the distance between the mirror and spot of light?

(d) Why paper begins to burn?​

Answer 1

Answer:

The type of mirror utilized in both situations is a concave mirror.

Answer 2

Answer:

Explanation:

Concave mirror

A lot of sun's heat rays are concentrated at the point of sun's image which burn the hole in carbon paper.

At the focus

Focal length

A black carbon paper absorbs more heat rays and hence burns a hole more easily (than a white paper).