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1. |
A mass suspended on a frictional less horizontal surface. It is attached to a string and rotates about a fixed centre at an angular velocity w0. If length of the string and angular velocity are doubled the tension in the string which was initially T0 is now |
A. | 8 T0 |
B. | T0/2 |
C. | 4 T0 |
D. | T0 |
Answer» B. T0/2 | |