Advertisements
Advertisements
Question
Explain the following:
It is cool in the shade, when it is hot outside.
Advertisements
Solution
As earth surface gets heated by sun rays and due to process of convection the air near earth surface open to sunlight get heated while in shade sun rays does not fall on earth surface so air near that surface would not heat up.
APPEARS IN
RELATED QUESTIONS
How is the size of a degree defined on a Fahrenheit scale?
Two bodies at different temperatures are placed in contact. State the direction in which the heat will flow.
Who am I?
I make things hot or cold.
State three factors affecting evaporation.
What is the unit of coefficient of linear expansion?
A copper wire 10 cm long is heated from 200C to 300C. Find the increase in length of the wire, if coefficient of linear expansion of copper is 1.7 X 10-5oC-1
The following figure shows a rectangular box with two tubes P and Q at the top. A burning candle R is placed under the tube P. The candle burns brightly.

Explain:
(i) How is the air in the box circulating?
(ii) What will happen if the opening Q is closed?
Who am I?
I get heated due to the land or water near me
While a substance is undergoing a change of state, the temperature of the body remains the same.
