Question

A copper rod of 88 cm and an aluminium rod ofunknown length have their increase in lengthindependent of increase in temperature. The lengthof aluminium rod is : (ac, = 1.7x 10-5 K-1 anda =2.2x10-50-1)(1)113 am113.9 cm(2)88 cm68 cm6.8 cm​

Answer 1

hello mate.

alpha × L(cu) = alpha × L(Al)

1.7 × 10–5 × 88 cm = 2.2 × 10–5 × L(Al)

Al   L 68 cm