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संबंधित प्रश्न
What is the Fahrenheit scale of temperature ?
A body absorbs 1680 J of heat energy. How many calories of heat is absorbed by the body?
Two bodies are at same temperature. Do they necessarily contain same amount of heat?
What is evaporation? Why does it cause cooling?
Explain the following:
Why is the cooling in a refrigerator kept near the top?
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?
Find the final temperature of a copper rod. Whose area of cross-section changes from 10 m2 to 11 m2 due to heating. The copper rod is initially kept at 90K. (Coefficient of superficial expansion is 0.0021 /K)
The temperature of boiling water is ______.
