A string of length L and force constant K is stretched to obtain extension 
. It is further stretched to obtain extension 
. The work done in second stretching is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Work done in stretching a string to obtain an extension 
is
Similarly, work done in stretching a string to obtain extension 
is
Work done in second stretching will be.
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