Physicsmedium · Past Paper
What is the speed of sound in a medium if a wave with a frequency of 2 kHz has a wavelength of 0.75 m?
A150 m/s
B1500 m/s
C2666 m/s
D750 m/s
✓ Correct Answer: B — 1500 m/s
v = f * lambda. Convert 2 kHz to 2000 Hz. v = 2000 * 0.75 = 1500 m/s.
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