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2015-04-01T16:47:43+05:30

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Speed of wave (u)= 50cm/s
frequency (f)= 40hz
wavelength = w

speed = w×f
⇒ 50 = 40×w
⇒w = 50/40 = 1.25cm

Since minimum separation between consecutive compressions is equal to the wavelength of wave, answer is 1.25cm.
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2015-04-01T23:59:41+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
V = velocity of the wave = frequency * wavelength
 wavelength =  50 cm /sec / 40 Hz   = 1.25 cm

The separation between the consecutive compressions in the medium is called the wavelength.  Hence, it is 1.25 cm.

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