1. Two springs A (soft) and B (stiff), loaded with the same mass on their hangers, are suspended one by
one from the same rigid support. They are set into vertical oscillations at different times, and the time
period of their oscillations are noted. In which spring will the oscillations be slower ?
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Answer:
Correct option is
A
more work is done on B i.e., W
B
> W
A
Given that A is stiffer than B K
A
>K
B
On both the springs the force applied is same for A the spring constant is greater than that of B but the expansion is less thus the work for A will also be less than that for B.
[A] More work is done on B i.e W
B
>W
A
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