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प्रश्न
What are wavelength, frequency, time period and amplitude of a sound wave?
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उत्तर
- Wavelength:- The distance between two consecutive compressions or two consecutive rarefactions is known as the wavelength. Its SI unit is metre (m).
- Frequency:- The number of complete oscillations per second is known as the frequency of a sound wave. It is measured in hertz (Hz).
- Time Period:- The time taken by two consecutive compressions or rarefactions to cross a fixed reference point is called the time period (T) of the wave.
- Amplitude:- The maximum height reached by the crest or trough of a sound wave is called its amplitude
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संबंधित प्रश्न
A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
| 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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Draw displacement-time graph of a wave and show on it the amplitude and time period of wave.
Select the correct option:
Which of the following is an elastic wave?
Through which medium sound travels faster, iron or water? Give reason.
