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A copper rod of 88 cm and an aluminium r...

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=1.7xx10^(-5) K^(-1) " and " alpha Al=2.2xx10^(-5) K^(-1))`

A

113.9 cm

B

88 cm

C

68 cm

D

6.8 cm

Text Solution

Verified by Experts

The correct Answer is:
C
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