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प्रश्न
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
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उत्तर
| Human larynx | Vibrations in vocal cords |
| Loudspeaker | Vibrations of screen |
| Jal-Tarang | Vibrations in air column |
| Tuning fork | Vibrations of metal arms |
| Sitar | Vibrations in strings |
संबंधित प्रश्न
Select the correct alternative :
Sound travels the fastest in
What should an object do to produce sound?
If 20 waves are produced per second, What is the frequency is hertz?
Name four ways in which sound can be produced.
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?
Medium is ______ for generation of sound.
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.
