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प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
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उत्तर
| Column A | Column B |
| (a) Vibrations cause | (3) sound |
| (b) A shriller sound is | (4) of high pitch |
| (c) Unit of frequency | (5) hertz |
| (d) Unit of time period | (2) second |
| (e) Curtains | (1) absorb sound |
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संबंधित प्रश्न
Write true or false for a given statement.
Loudness depends on frequency.
Write true or false for a given statement.
Waveforms of two different stringed instruments can be the same.
What is a longitudinal wave ?
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
Describe briefly an experiment to prove that vibrating bodies produce sound.
What is approximate value of the speed of sound in iron as compared to that in air? Illustrate your answer with a simple experiment.
An earthquake produces which kind of sound before the mainshock wave begins
Distinguish between compression and rarefactions.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
