A long metallic bar is carrying heat from on eof its ends to the other end under steady-state. The variation of temperature `theta` along the length x of the bar from its hot end is best described by which of the following figures?

The ends of a metallic bar are maintained at different temperature and there is no loss/gain of heat from the sides of the bar due to conduction or radiation. In the steady state the temperature variation along the length of the bar is a shown in the figure what do you think about the cross sectional area of the bar?

A uniform bar AB of length 6a has been placed on a horizontal smooth table of width 5 a as shown in the figure. Length 2a of the bar is overhanging. Mass of the bar is 4m. An insect of mass m is sitting at the end A of the bar. The insect walks along the length of the bar to reach its other end B. (a) Will the bar topple when the insect reaches end B of the bar ? (b) After the insect reaches at B, another insect of mass M lands on the end A of the bar. Find the largest value of M which will not topple the bar.

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 (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 becreases as the distance from the hot end increases

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