A whistle emits a steady note of

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

Problem

1.5\,\text{kHz}

. The speed of sound is

330\,\text{m/s}

in air and

1480\,\text{m/s}

in water. By approximately what percentage does the wavelength of this sound increase when it passes from air into water? (a)

450\%

(b)

78\%

(c)

348\%

(d)

112\%