Q. Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.
A) 36
B) 1800
C) 72
D) 900
✔ Correct Answer: 72
Exam Insight
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A) 36
B) 1800
C) 72
D) 900
✔ Correct Answer: 72
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