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प्रश्न
What is vibration?
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उत्तर
Vibration means a kind of rapid to and from motion of an object
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संबंधित प्रश्न
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Can sound travel through (a) iron, and (b) water?
Can sound travel through vacuum?
If 20 waves are produced per second, What is the frequency is hertz?
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?
Which kind of sound is produced in an earthquake before the main shock wave begins ?
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
