The speed of a 10-kHz sound wave in seawater is approximately 1 500 m/s. What is its wavelength in sea water?
A) 5.0 cm
B) 10 cm
C) 15 cm
D) 20 cm
E) 29 cm

Question

Quizplus · Accepted Answer

The formula relating wavelength (λ), speed (v), and frequency (f) is: λ = v/f. 
Plugging in the given values: λ = 1500 m/s / 10,000 Hz = 0.15 m = 15 cm. Therefore, the wavelength of the 10-kHz sound wave in sea water is 15 cm. Choice C is the closest option at 15 cm.

The Speed of a 10-KHz Sound Wave in Seawater Is