Question

28. A brass rod has length 0.2m area of cross section
1.0cm’ and Young's modulus 10^11Nm^-2. If it is
compressed by 5kg-wt along its length then the
change in its energy will be
(1) increase by 2.4 x 10-5 J
2) decrease by 2.4 x 10-5 J
3) increase by 2.4 x 107 J
4) decrease by 2.4 x 107 j
plz answer me​

Answer 1

Answer:

Energy increases bcoz the rod is compressed..

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