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प्रश्न
Write the answer in your own words.
What is meant by vibration?
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उत्तर
The rapid oscillations or to-and-fro movements of an object are called vibrations. Vibrating objects have a particular speed.
संबंधित प्रश्न
Describe an experiment to estimate the speed of sound in air.
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
A tuning fork has a number 256 marked on it. What does this number signify?
What will be the change in the wavelength of a sound wave in air if its frequency is doubled?
If 20 waves are produced per second, What is the frequency is hertz?
How does sound from a sound producing body travel through air to reach our ears? Illustrate your answer with the help of a labelled diagram.
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?
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?
Sound travels in the air if
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.
