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प्रश्न
Who am I?
Land and water get heated due to me.
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उत्तर
Sunrays
संबंधित प्रश्न
Fill in the blank:
°C is the unit of ......................
What is heat ? Write its S.I. unit.
A given mass of water is cooled from 10°C to 0°C. State the volume changes you will observe. Represent these changes on a temperature-volume graph.
Name the substance which contracts when heated from 00C to 40C.
Why does a substance expand on heating?
State the advantages and disadvantages of mercury and alcohol as thermometric liquids.
Explain the following:
It is cool in the shade, when it is hot outside.
What do you understand by thermal equilibrium?
Suppose your normal body temperature were lower than what it is. How would the sensation of hot and cold change?
When we cool the object the temperature of the object will be increased.
