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प्रश्न
What do you mean by temperature?
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उत्तर
Temperature is the degree of hotness or coldness of a body compared to other bodies around it. SI unit of temperature is Kelvin (K)
संबंधित प्रश्न
Why does a piece of ice when touched with a hand, appear cool? Explain.
Is heat a form of energy?
Name the scientist who designed the first thermometer.
Write the SI unit of coefficient of cubical expansion.
What is the relation between α and γ?
What is meant by the lower and upper fixed points of a thermometer?
Convert the following temperature into Fahrenheit scale:
1000C
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?
______ determines the direction of the flow of heat.
