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Olympiad workbookNSEPThermal Properties of Matter

End A of a uniform thin rod of length 2 L is in boiling water (100^ C ) and end B is in melting ice (0^ C ) . P and Q are two points at distance L 2 from A and B respectively. A similar bent rod of length 3 ~L 2 of same material and equal cross section is joined to rod AB between points P and Q as shown in figure. Then

Options

  1. ATemperature at P will increase and that at Q will decrease
  2. BRate of flow of heat will increase by 25 %
  3. CRate of flow of heat will decrease by 20 %
  4. DRate of heat flow will increase by 37.5 %

Correct answer

B. Rate of flow of heat will increase by 25 %

Step-by-step solution

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