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प्रश्न
Name a substance which is an insulator of heat.
उत्तर
Wood is an insulator of heat.
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संबंधित प्रश्न
What is the Celsius scale of temperature ?
Name two substances which contract on heating.
State the volume changes that you will observe when a given mass of water is heated from 0°C to 10°C. Sketch a temperature-volume graph to show the behaviour.
Define temperature on a conventional basis.
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?
Where am I?
The mean annual temperature is 25°C around me.
Who am I?
I get heated due to the land or water near me
Give reason for the following
The electric wire which sag in summer become straight in winter.
The coldest temperature in the world was measured in the ______ continent.
