A body is vibrating 6000 times in one minute. If the velocity of sound in air is 360 m/s, find
(i) frequency of vibration in Hz, and
(ii) wavelength of the wave produced.
A source of wave produces 40 crests and 40 troughs in 0.4 second. Find the frequency of the wave.
A source is producing 15 waves in 3 seconds. The distance between a crest and a trough is 10 cm. Find (i) the frequency, (ii) the wavelength, and (iii) the velocity of the wave.
(a) Ocean waves of time period of 10 s have a speed of 15 m/s. What is the wavelength of these waves?
(b) Find the horizontal distance between a wave crest and the adjoining wave trough. You may assume the waves as harmonic.
A sound wave has a frequency of 2 kHz and wavelength 35 cm. How long will it take to travel 1.5 km?
The time taken by the wave to travel a distance, d of 1.5 km is
Thus sound will take 2.1 s to travel a distance of 1.5 km.