When the heat rays from the sun area focused on a piece of
black cloth by means of a lens, the cloth catches fire. Why ?
- 1 Answers
- 3464 Views
- I also Faced
- E-Mail Answers
Answer / guest
It is because the heat radiations obey the laws of refraction.
| Is This Answer Correct ? | 0 Yes | 1 No |
what is the relation between Total organic carbon and Chemical Oxygen demand?
Why do eye-glasses become fogged, when the wearer comes form the cold outdoors into a warm room ?
What are the factors that affect the viscosity of a liquid?
Why is sodium preserved in kerosene oil ?
Why is heat more oppressive on a damp hot day ?
Which gas is used, in laboratories etc. for burners ?
Why is acetone used for cleaning viscometer?
What is a cell?
Why is mercuric chloride added?
What is Liquation ?
Why mud houses are cooler in summer and warmer in winter ?
what is acidity of a base?
Organic Chemistry 
