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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
State the three units of temperature.
Write down the temperature of upper fixed point,, on the Fahrenheit scale.
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What is the relation between joule and calorie?
State three factors affecting evaporation.
Convert the following temperature into Fahrenheit scale:
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