A sound wave has a frequency of 850 Hz.What is the sound wave's wavelength if the air temperature is 26.0 $\circ$ C?
A)0.41 m
B)2.0 m
C)33 m
D)0.42 m

Question

​A sound wave has a frequency of 850 Hz.What is the sound wave's wavelength if the air temperature is 26.0 $\circ$ C?
A)​0.41 m
B)​2.0 m
C)​33 m
D)​0.42 m

Quizplus · Accepted Answer

The speed of sound in air at 20°C (which is approximately 68°F, close to the given temperature of 26°C) is about 343 m/s. Using the formula wavelength = speed/frequency, we get wavelength = 343 m/s / 850 Hz = 0.4035 m, which rounds to 0.41 m, making option A correct.

​A Sound Wave Has a Frequency of 850 Hz ∘\circ∘ C? A)​0

A Sound Wave Has a Frequency of 850 Hz $\circ$ C?
A)0