A copper r d of 88 cm and an aluminium rod of unknown length

Last updated: 6/14/2023

A copper r d 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 1 7 10 5 K 1 and A 2 2 10 5 K 1 NEET 2019 1 6 8 cm 3 88 cm 2 113 9 cm 4 68 cm