A copper rod of $88 cm $ and an aluminium rod of unknown length have their increase in length independent of increase in temperature. The length of aluminium rod is: ( $\alpha_{cu}-1.7\times 10^{-5}K^{-1} $ and $\alpha_{Al}=2.2×10^{-5}K^{-1}$ )

Question

A copper rod of $88 cm $  and an aluminium rod of unknown length have their increase in length independent of increase in temperature. The length of aluminium rod is: ( $\alpha_{cu}-1.7\times 10^{-5}K^{-1} $ and  $\alpha_{Al}=2.2×10^{-5}K^{-1}$ )

cdquestions Admin · Accepted Answer

The correct option is (D) :68 cm

Answer

Answer

Answer

Answer

A copper rod of \(88 cm \) and an aluminium rod of unknown length have their increase in length independent of increase in temperature. The length of aluminium rod is: (\(\alpha_{cu}-1.7\times 10^{-5}K^{-1} \)and \(\alpha_{Al}=2.2×10^{-5}K^{-1}\))

The Correct Option is D

Solution and Explanation

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