a pulse was created in a stretched string of length 5 m. it was observed that the pulse returned. after reflection at the point of creation 5 times in 10 seconds calculate the speed
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length of the slinky = Wavelength = 5 m
Frequency = no. of oscillations/Time
= 5/10
= 0.5 Hz
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Speed = f × ʎ
= 0.5 × 5
= 2.5 m/s
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