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Two bodies at different temperatures are placed in contact with each other. State the direction in which heat flows.
Why do we wear woolen clothes in winter?
Name three devices which are used to detect heat radiations.
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Explain the following:
Conduction is not possible in vacuum.
Who am I?
I am useful for measuring the correct temperature.
When we cool the object the temperature of the object will be increased.
Give reasons why –
we wear woolen clothes in winter
