In music, the note G above middle C has a frequency of about 392 hertz. If the speed of sound in the air is 340 m/s, what is the approximate wavelength of this note?

0.87 meters

1.2 meters

8.7 meters

0.0026 meters

The wavelength of a sound wave can be calculated using the formula:

wavelength = speed of sound / frequency

Plugging in the values given:

wavelength = 340 m/s / 392 Hz

wavelength = 0.867 meters or approximately 0.87 meters

Therefore, the answer is option A: 0.87 meters.