Two rods of the same length, have radii in the ratio $$3$$:$$4$$. Their densities are respectively $$8000$$ and $$9000$$ $$kg/m3$$. Their specific heats are in the ratio of $$2$$:$$3$$. When the same amount of heat is supplied to both, the changes in their lengths are in the ratio. (If$$ their linear coefficients are in the ratio $$5$$:$$6)

Question

Infinity Learn · Accepted Answer

$$Q=ms$$Δq,$$m=rpr2l$$Δ$$q=$$Δla⇒Δ$$1$$Δ$$2=r2r1$$×$$r22r12$$×$$s2s1$$×$$a1a2$$

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