Physics
Grade-8
Easy
Question
A sound wave traveling at a speed of 1000 m/s has a frequency of 1 kHz. Its wavelength is ___ m.
Hint:
- v=fλ
- v= wave speed, f= frequency, λ= wavelength
The correct answer is: 1
- Wave speed= frequency × wavelength.
- Given that speed = 1000m/s and frequency= 1Khz =1000Hz.
- Therefore, wavelength= wave speed/frequency
= 1000/1000 =1m.
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