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Fill in the blank.
The pitch of a sound depends on its ________.
Select the correct alternative :
Wavelength is measured in
Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
A cannon is fired at A (see diagram). An observer at B hears two sounds. The first sound is heard after 1 second and the second 3s after the observer sees the flash. (Velocity of sound = 340 ms−1)
(i) Why does the observer see the flash before he hears the sound?
(ii) Calculate the distance x between the observer and the wall.
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
How do the following factor affect the speed of sound in air?
Temperature of air
Name the Sound of the Frequency Given Below:
200 Hz
