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Spherical mirror is held towards the sun .its sharp image is formed on a piece of black carbon paper for sometime . A hole is burnt in the carbon paper Q. Why is the hole burnt in the paper

Posted by Harish Gupta 6 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Gaurav Seth 6 years, 7 months ago

Complete question:

Q.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 ?

(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 ?

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Solution:

(a) Concave mirror

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

(d) Focal length.

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

2Thank You

Anshika / U Can Call Me Alien ???? 6 years, 7 months ago

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

2Thank You

ANSWER

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CBSE > Class 10 > Science