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Earn 100

Explain the role of temperature gradient in transfer through conduction.

Important Questions on Heat and Light

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_____ is not required for heat transfer due to radiation.
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Mode of transfer of heat in solids is _____.
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Stainless steel is a _____ conductor of heat.
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The fastest mode of heat transfer is _____.
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On dipping a plastic and a steel spoon in hot water, _____ spoon gets hot.
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Conduction of heat takes place only in _____.
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Rays from sun may be taken to be _____.
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A device that prevents loss (or gain) of energy by conduction, convection and radiation _____

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Cooking utensils are usually made of _____.
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Stainless steel heating containers are usually provided with copper bottoms. It is because
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_____ is not possible in liquid and gases.
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A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of _____.

(Choose from the following: convection/conduction)

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Heat flow by means of _____ is the fastest.
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All _____ are good conductors of heat.

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A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of _____.
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Heat travels through _____ (solids/liquids/gases) without the actual displacement of particles.