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प्रश्न
You and your friend are on the moon. Will you be able to hear any sound produced by your friend?
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उत्तर
No, as there is no medium on moon for the sound to travel.
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संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
What minimum distance is required between the source of sound and the reflecting surface to hear an echo ? Give reason.
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?
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.
Different sound notes have different ______.
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?
How is sound produced in a human larynx and a loudspeaker?
Sound is produced by ______.
