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प्रश्न
Sound can not travel in
पर्याय
solid
liquid
gas
vacuum
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उत्तर
vacuum
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संबंधित प्रश्न
A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.
In which units is the loudness of sound measured?
Decibel is the unit of pitch of a sound.
State three factors on which loundess of sound heard by a listener depends.
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
A man playing a flute is able to produce notes of different frequencies. If he closes the holes near his mouth, will the pitch of the note produced, increase or decrease? Give a reason.
Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.
What is the noise? Give an example.
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
