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Heat Pumps

A hot and a c...

Question

A hot and a cold body are kept in vacuum separated from each other. Which of the following causes decrease in temperature of the hot body?

A

Radiation

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B

Convection

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C

Conduction

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D

Temperature remains unchanged

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Solution

The correct option is B Radiation
Heat flow through vacuum is possible in radiation mode due to which temperature of hot body falls.

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