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प्रश्न
The amount of heat gained by a substance is equal to the product of its mass and latent heat.
विकल्प
True
False
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उत्तर
The amount of heat gained by a substance is equal to the product of its mass and latent heat- True.
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संबंधित प्रश्न
Fill in the blank
Heat is a form of _______.
Select the correct alternative
A thermometer uses
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
Draw a labelled diagram of a thermo flask. Explain how the transfer of heat by conduction, convection and radiation is reduced to a minimum in it.
While deciding the unit for heat, which temperature interval is chosen? Why?
What will absorb heat?
Soil
Complete the following sentence:
CGS units of heat is _________
We reduce the heat by adding ______ while preparing fruit juice.
Observe the picture given in figure. Water is being boiled in a pan of wide base.
- Which position P or T will feel warmer?
- Fill up the boxes P and T to indicate the mode of flow of heat to the hand.
On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. why?
