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7. A man generates a symmetrical pulse in a string by moving his hands up and down .At t=0 the point in his hands moves downward.the pulse travel with 3ms on string abd his hands passes 6 times in each second from mean postion.then the point on string 3m will reach its upper extreme first time at time t |
| Answer» 7. A man generates a symmetrical pulse in a string by moving his hands up and down .At t=0 the point in his hands moves downward.the pulse travel with 3ms on string abd his hands passes 6 times in each second from mean postion.then the point on string 3m will reach its upper extreme first time at time t | |