Question

. A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun.
He then directed the reflected light on to a sheet of paper held close to the mirror.
(a) What should he do to burn the paper ?
(b) Which type of mirror does he have ?
(c) Will he be able to determine the approximate value of focal length of this mirror from this activity?
Giye reason and draw ray diagram to justify your answer in this case.​

Answer 1

Answer:

(a) he should place the paper at focus point of the mirror

(b) convex mirror as it is converging mirror and converge all the Ray's on the focus

Answer 2

Explanation:

a) the paper should be placed at focus of the mirror

b) concave mirror

c) yes

you can draw the ray diagram when the object is placed at focus