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The ends of a long bar are maintained at...

The ends of a long bar are maintained at different temperatures and there is no loss of heat from the sides of the bar due to conduction or radiation. The graph of temperature against distance of the bar when it has attained steady state is shown here. The graph shows
ltimg src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ALN_PHY_R03_E09_009_Q01.png" width="80%"gt
(i) the temperature gradient is not uniform.
(ii) the bar has uniform cross-sectional area.
(iii) the cross-sectional area of the bar increases as the distance from the hot end increases.
(iv) the cross-sectional area of the bar decreases as the distance from the hot end increases

A

i & ii

B

ii & iii

C

i & iv

D

ii & iv

Text Solution

Verified by Experts

The correct Answer is:
C
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