Pressure cooker cooks food in lesser time because
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Physics GK · all questionsHeat and Thermodynamics
Heat and Thermodynamics
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308
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. . . . . . . . is not related to gases.
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Under which condition real gas can work as an ideal gas?
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According to Newton's Law of Cooling the rate of cooling of a body is proportional to the
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When a glass rod is placed in steam, its length increases but its width
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The normal temperature of a human body is . . . . . . . .
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Assertion (A): A piece of ice added to the drink, cools it.
Reason (R): Ice takes latent heat from the drink for melting resulting in the cooling of the drink.
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Reason (R): Ice takes latent heat from the drink for melting resulting in the cooling of the drink.
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Below is a statement (A) and a reason (R)-
(A): Left a small gap between tracks
(R): Iron spread in summer.
(A): Left a small gap between tracks
(R): Iron spread in summer.
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The amount of radiation emitted by a perfectly black body proportional to
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Fruit stored in a cold chamber exhibit longer storage life because
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When heated from 0°C to 10°C volume of given mass of water will
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Opening the door of refrigerator kept in the room
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During hot weather, the fan produces a feeling of comfort. This is because
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The principle of evaporation of liquid to absorb heat, is used in-
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If the temperature of air increases, how would it affect its ability to assume water vapour?
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To change a temperature from the Kelvin scale to the Celsius scale, you have to
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Which one of the following processes is not a part of long-wave radiation?
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What changes will the volume of water show if the temperature is lowered from 9°C to 3°C?
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Relation between the colour and the temperature of a star is given by
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Q100
Open questionIn which of the following phenomena do heat waves travel along a straight line with the speed of light?
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