Two spring P and Q having stiffness constants `k_1` and `k_2(ltk_1)`, respectively are stretched equally. Then

Options

A. (a) More work is done on Q
B. (b) More work is done on P
C. (c) Their force constants will become equal
D. (d) Equal work is done on both the springs

Answer

B

Explanation

Since `k_1gtk_2`.
Therefore, P will develop greater restoring force than Q. So the applied force on P will be more than the applied force on Q. Extension is same in both the cases. So, more work will be done on P.