A time–amplitude graph of a sound wave shows that two consecutive crests pass a…

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

A time–amplitude graph of a sound wave shows that two consecutive crests pass a microphone

0.0025\,\text{s}

apart. If the speed of sound in air is

330\,\text{m}\!\!/\!\!\text{s}

, find the wavelength of the wave. (a)

1.65\text{ m}

(b)

0.66\text{ m}

(c)

0.825\text{ m}

(d)

1.32\text{ m}