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प्रश्न
What is the principle of the thermometer?
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उत्तर
The thermometer works on the principle that substances expand on heating and contract on cooling. So we use a thermometric substance which expands and contracts uniformly.
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संबंधित प्रश्न
Write down the temperature of upper fixed point,, on the Fahrenheit scale.
Distinguish between heat and temperature.
Convert the following temperature into Fahrenheit scale:
1000C
SI unit of temperature is ______.
Assertion: When water is heated up to 100°C, there is no raise in temperature until all water gets converted into water vapour.
Reason: Boiling point of water is 10°C.
While a substance is undergoing a change of state, the temperature of the body remains the same.
Give reasons why –
chimneys are located high up in kitchens and factories
