When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
(a) What is the nature of spherical mirror?
(b) Why is a hole burnt in the carbon paper?
(c) At which point of the spherical mirror the carbon paper is placed?
(d) What name is given to the distance between spherical mirror and carbon paper?
(e) What is the advantage of using a carbon paper rather than a white paper?
Answers
Explanation:
a) The nature of the spherical mirror is a concave mirror.
(b) The hole is burnt in the carbon paper because most of the sun’s heat rays are focussed on the sun's image point and this can burn the carbon paper’s hole.
(c) The carbon paper is placed at the focus of the spherical mirror.
(d) The distance between the spherical mirror and carbon paper is called the focal length.
(e) More than a white paper, a black carbon paper absorbs more heat rays. This is one of the advantages of using a carbon paper.
You can get all the answers of Chapter 4 in the link below:
https://brainly.in/question/14963178
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Answer
a) the nature of the spherical mirror is a concave mirror
b) the hole is burnt in the carbon paper because most of the sun's heat rays are focused on the sun's image point and this can burn the carbon paper hole