Physics, asked by anurag1701, 1 year ago

plz telll it...............................

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Answered by satyam199

1

Distance covered in, for to and fro motions
= 2 × 4 × 25 cm = 200 cm = 2 m
Time = 2.8 sec.
∴ Speed of pulse = Distance/Time
= 2/ 2.8 = 0.71 m/s

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