Wavelength from wave speed
Sound travels at 340 m/s in air. What is the wavelength of a 680 Hz tone?
Answer B: explanation for every choice
A
This divides by 2f instead of f.
B
Correct. λ = v/f = 340/680 = 0.5 m.
C
This inverts the ratio (f/v).
D
This multiplies v and f.
Takeawayv = fλ.
Equation usedWave speed
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