MCQOPTIONS
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| 1. |
Force between two identical bar magnets whose centres are r metre apart is 4.8 N, when their axes are in the same line. If separation is increased to r, the force between them is |
| A. | 2.4 N |
| B. | 1.2N |
| C. | 0.6 N |
| D. | 0.3 N |
| Answer» E. | |