Surface water of a lake is about to freeze. What will be the temperature (in °C) of water at the bottom of the lake?
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Physics GK · all questionsHeat and Thermodynamics
Heat and Thermodynamics
practice.
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Which of the following statement(s) about specific heat of a body is/are correct?
1. It depends upon mass and shape of the body.
2. It is independent of mass and shape of the body.
3. It depends only upon the temperature of the body.
1. It depends upon mass and shape of the body.
2. It is independent of mass and shape of the body.
3. It depends only upon the temperature of the body.
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Why are dewdrops not formed on a cloudy night?
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Assertion (A): The handle of pressure cooker is made up of Abonite.
Reason (R): Abonite is a hard material.
Reason (R): Abonite is a hard material.
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The woollen clothes keep us warm in winter because they
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What is the use of thermostat?
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Thermal conductivity of a solid metal with increasing temperature-
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Clear nights are colder than cloudy nights because of . . . . . . . .
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Heat transfer horizontally within the atmosphere is called
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When soggy biscuits are kept inside the fridge for sometime they become crisp because
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It is difficult to cook rice
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Which of the following principles does the refrigerator work on?
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On which we gets the absolute zero pressure?
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Blowing air with open pipe is an example of
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Statement I While putting clothes for drying up, we spread them out.
Statement II The rate of evaporation increases with an increase in surface area.
Statement II The rate of evaporation increases with an increase in surface area.
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During the melting of solid, its temperature
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The amount of heat required to change a liquid to gaseous state without any change in temperature is known as
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To convert the temperature taken on the Kelvin scale to the Celsius scale-
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Why boiling point of water decreases at high altitudes?
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The lowest temperature is recorded by
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