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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2019
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Q)

A copper rod of 88 cm and an aluminum rod of unknown length have their increase in length independent of increase in temperature. The length of aluminum rod is : ($\propto Cu=1.7\times10^{-5}K^{-1}and \propto Al=2.2\times 10^{-5}K^{-1}$)


( A ) 68 cm
( B ) 113.9 cm
( C ) 6.8 cm
( D ) 88 cm

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