A Musical Tone's Pitch Varies Inversely with Its Wavelength

Multiple Choice

A musical tone's pitch varies inversely with its wavelength. If one tone has a pitch of 420 vibrations each second and a wavelength of 2.1 meters, find the wavelength of a tone that has a pitch of 690 vibrations each second. Please round your answer to the nearest hundredth.

A) 0.01 meters
B) 0.78 meters
C) 1.28 meters
D) 4.42 meters
E) 3.45 meters