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प्रश्न
State three main characteristics of a thermometric substance.
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उत्तर
The main characteristics of the thermometric substances are
(a). The substance should have a high coefficient of expansion so that it is sensitive to the smallest change in temperature
(b). The substance should have uniform expansion all over its entire volume
(c). The substance should have minimum specific heat so that it absorbs minimum heat from the body under measurement.
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संबंधित प्रश्न
State the three units of temperature.
The temperature of a body rises by 1°C. What is the corresponding rise on the (a) Fahrenheit scale (b) Kelvin scale?
What is the normal temperature of human body?
Explain the following:
Water is heated generally from below.
Is it possible to boil water in a thin paper container? Explain with a reason.
Convert the following temperature into Celsius scale:
113oF
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?
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
The temperature and heat are ______ quantities.
