Two wires of the same material (Young's modulus Y) and same length L but radii R and 2R respectively are joined end to end and a weight w is suspended from the combination as shown in the figure. The elastic potential energy in the system is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Equivalent 
Since, k 1 x 1 = k 2 X 2 = w
Elastic potential energy of the system
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