Question 9 Unsaved A 680-Hz sound wave travels at 340 m/s in air, with a wavelength of 0.5 m. 5 m. 50 m. 500 m. none of the above

The correct option is 0.5 M

Calculation

Wavelength is defined as the ratio of velocity of a wave to its frequency. It is measure in meters. Mathematically, wavelength is given by the following formula:

Wavelength = wave velocity / frequency

From the details given in the question,

Wavelength = ?

Velocity = 340 m/s

Frequency = 680 HZ

Wavelength = 340 / 680 = 0.5

Therefore, wavelength = 0.5 M

Wavelength = (speed) / (frequency)

Wavelength = (340 m/s) / (680 / s)

Wavelength = (340/680) meters

Wavelength = 0.5 meter <= = looks like the first choice on the list