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Convection

Liquids are h...

Question

Liquids are heated by conduction and radiation.

A

True

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B

False

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Solution

The correct option is B False
Explanation:
Liquids are heated by convection.
Convection is the process of heat transfer by the actual movement of medium particles.
Hence, the given statement is false.

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Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

Q. Write true or false for given statement :
Liquids are heated by conduction and radiation.

Q. By which of the following methods could a cup of hot tea lose heat when placed on metallic table in a class room
a) conduction
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c) radiation
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Q. The primary mode of heat transfer in liquid is

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Q. Which of the following statements are incorrect? Rewrite them correctly in your notebook.
(a) A Thermos flask that is used to store either cold or hot liquids for several hours minimises heat transfer by conduction and convection only.
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(c) Dark objects are better absorbers and better radiators of heat.
(d) Air is a good conductor of heat.
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