Radius of a conductor increases uniformly from left end to right en...

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Radius of a conductor increases uniformly from left end to right end as shown in fig.
\( \mathrm{P} \)
W
Material of the conductor is isotropic and its curved surface is thermally insulated from surrounding. Its ends are maintained at temperatures \( T_{1} \) and \( T_{2}\left(T_{1}T_{2}\right. \) ): If, in steady state, heat flow rate is equal to \( H \), then which of the following graphs is correct
(a)
(b)
(c)
(d)
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