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A man generates a symmetrical pulse in a...

A man generates a symmetrical pulse in a string by moving his hand up and down. At t = 0, the point in his hand moves downwards from mean position. The pulse travels with speed `3m//s` on the string and his hand passes 6 times in each second from the mean position. Then, the point on the string at a distance 3 m will reach its upper extreme first time at t =

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A man generates a symmetrical pulse in a string by moving his hand up and down. At t=0 the point in his hand moves downward. The pulse travels with speed of 3 m//s on the string & his hands passes 6 times in each second from the mean position. Then the point on the string at a distance 3m will reach its upper extreme first time at time t=

A man generates a symmetrical pulse in a string by moving his hand up and down. At t=0 the point in his hand moves downward. The pulse travels with speed of 3 m//s on the string & his hands passes 6 times in each second from the mean position. Then the point on the string at a distance 3m will reach its upper extreme first time at time t=

A man generates a symmetrical pulse in a string by moving his hand up and down. At t=0 the point in his hand moves downward. The pulse travels with speed of 3 m//s on the string & his hands passes 6 times in each second from the mean position. Then the point on the string at a distance 3m will reach its upper extreme first time at time t=

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