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प्रश्न
What conclusion can be obtained from the observation that when the prongs of a sound making tuning fork touch the surface of water in a beaker, the water gets splashed?
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उत्तर
The conclusion from the observation is that the prongs of the tuning fork are vibrating in simple harmonic motion and transmitting energy to the surrounding medium. The prongs move backward and forward continuously to produce compression and rarefaction, which is observed by the splash of water.
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संबंधित प्रश्न
Describe an experiment to show that each source of sound is a vibrating body.
Name the physical qantity whose SI unit is 'hertz'.
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
A tuning fork has a number 256 marked on it. What does this number signify?
Which object is vibrating when the following sounds are produced?
(i) The sound of a sitar
(ii) The sound of a tabla
(iii) The sound of a tuning fork
(iv) The buzzing of a bee or mosquito
(v) The sound of a flute
Describe a simple experiment to show that the prongs of a sound producing tuning fork are vibrating.
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?
Which of the following vibrates when a musical note is produced by the cymbals in an orchestra?
Sound is produced by ______.
