1. It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.
  2. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
  3. It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.
  4. None of the above
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1 Answers

Answer: Option 2

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