How does the pitch of an organ pipe change with the temperature?
The six strings of a guitar are of the same length and are under nearly the same tension but have different thicknesses. On which string do waves travel the fastest?
By what factor does the velocity of a transverse wave in the string change when the tension in the stretched string is increased by four times?
The frequency of fundamental notes of a closed organ pipe and that of an open organ pipe are the same. What is the ratio of their length?
The interval between the flash of lightning and the sound of thunder is 2 seconds when the temperature is 10°C. How far is the storm if the velocity of sound in air at 0°C is 330 m/s
A man standing at one of a closed corridor 57 m long below a short blast on a whistle. He found that the time from the blast to the sixth echo was 2 seconds. If the temperature was 17°C, what was the velocity of sound at 0°C?
A source of the sound of frequency 512 Hz emits waves of wavelength 670 mm in the air at 20°C. What is the velocity of sound in air at this temperature? What would be the wavelength of sound from the source in the air at 0°C?
When a detonator is exploded on a railway line, an observer standing on the rail 2 km away hears two sounds. What is the time interval between them? (Young's modulus of steel = 2 x 1011 Nm-2, density of steel = 8 x 103 kgm-3, γ=1.4, atmospheric pressure = 105 Nm-2)
On a stormy day, a boy observes a lightning flash which is followed by thunder 3 sec later. How would you estimate the distance of the lightning strike from the boy? (Given velocity of sound on that day = 332 m/s, velocity of light c = 3x108 m/s)
A source of frequency emits a wave of wavelength 64.5 cm in the air at 27°C, What would be the velocity of sound at 0°C?
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