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प्रश्न
State factors on which the amount of heat radiated by a body depends.
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उत्तर
The amount of heat radiated by a body depends on:
- The absolute temperature of the body (T)
- The nature of the body – the material, nature of the surface - polished or not, etc.
- The surface area of the body (A)
- Time duration for which body emits radiation (t).
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संबंधित प्रश्न
Define heat capacity and state its SI unit.
State two factors upon which the heat absorbed by a body depends
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State the impact of global warming on life on the earth.
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Give one example where high specific heat capacity of water is used as cooling.
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Define heat capacity.
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Solve the following problem.
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How much heat energy is necessary to raise the temperature of 5 kg of water from 20°C to 100°C?
All metals have the same specific heat capacity.
Explain why the specific heat capacity at constant pressure is greater than the specific heat capacity at constant volume.
If 'Cp' and 'Cv' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'Cp' is equal to ______.
For a gas `"R"/"C"_"v" = 0.4,` where 'R' is the universal gas constant and 'Cv' is molar specific heat at constant volume. The gas is made up of molecules which are ______.
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Which metal piece will show a greater rise in temperature given their masses is the same?
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