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प्रश्न
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
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उत्तर
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is 500 Hz (One compression and rarefaction together makes a cycle of sound wave).
संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
Name the device which is used to produce sound in laboratory experiments?
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
A device called oscillator is used to send waves along a stretched string. The string is 20 cm long, and four complete waves fit along its length when the oscillator vibrates 30 times per second. For the waves on the strings.
(a) what is their wavelength?
(b) what is their frequency
(c) what is their speed?
A sound producing body is at considerable distance from a man. There can be four different media W, X, Y and Z between the sound producing body and the man. The medium X brings the sound to man most quickly whereas medium Z takes the maximum time. The time taken by medium W in bringing sound to man is less than that of X but more than that of Z. The medium Y, however, fails to bring the sound from the sound producing body to the man. Which medium could be the one :
(a) having on fixed shape and no fixed volume?
(b) having a fixed volume but no fixed shape?
(c) having the same composition as that on the moon?
(d) having a fixed shape and a fixed volume?
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing rang. This note must then be passing through.
Sound is produced by ______.
What is vibration?
Infrasound can be heard by
______ is produced when an object is set to vibrate.
