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    				| 1. | A boy revolves two balls each of mass 100 gm andtied with strings of 1 metre length each in horizontalcircle as shown in figure. If the speed of outermost ballis 6 m/s, then tension in string-1 is21(A) 2.4 N(C) 2 N(B) 2.7 N(D) 1.2 N | 
| Answer» option B | |