A copper rod of 88 cm and an aluminium rod of unknown length have their increase in length independent of increase in temprature . The length of aluminium rod is :
6.8 cm
113.9 cm
88 cm
68 cm
For Copper L = 88 cm
Option 1)
6.8 cm
Option 2)
113.9 cm
Option 3)
88 cm
Option 4)
68 cm