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two pendulums with natural freq. f1 and f2 are released at same time and in same phase after what time interval will they come in phase again?? 1)1/f1-1/f2 2)1/f1+1/f2 3)1/f1.f2 4) lcm of 1/f1 and 1/f2


two pendulums with natural freq. f1 and f2 are released at same time and in same phase after what time interval will they come in phase again??
1)1/f1-1/f2          2)1/f1+1/f2         3)1/f1.f2        4) lcm of 1/f1 and 1/f2


Grade:9

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