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Water is taken in a metal container and is heated at its bottom. The arrangement is placed in a freely falling elevator. Now the liquid is heated up by
a) Conduction
b) Convection
c) radiation

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a only

a,b,c

a, b only

b,c only

answer is D.

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Detailed Solution

Natural convection is due to upthrust process which is dependent on effective gravity.

In a freely falling left, effective gravity is zero. So, there is no convection. Heat is only transferred by conduction.

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