Class 11

10-2.Heat Transfer question bank (Physics)

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Q1.

The temperature of the hot and cold ends of a $20 \ cm$ long rod in a thermal steady state are at $100^\circ C$ and $20^\circ C$ respectively. The temperature at the centre of the rod is ...... $^\circ C$.

(A)

$50$

(B)

$60$

(C)

$40$

(D)

$30$

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Q2.

For heat to flow from one end to the other in a solid,it is necessary to have:

(A)

Uniform density

(B)

Density gradient

(C)

Temperature gradient

(D)

Uniform temperature

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