A brass rod of length 2 m and cross-sectional area 
is attached end-to-end to a steel rod of length L and cross-sectional area 
. The compound rod is subjected to equal and opposite pulls of magnitude 
at its ends. If the elongations of the two rods are equal, the length of the steel rod is ( 
and 
)
Text Solution
Verified by ExpertsThe correct answer is:
D
Since, the elongations of the two rods are equal.
The length of the steel rod,
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