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प्रश्न
In what respect does waveforms of noise and a musical note differ. Draw diagrams to illustrate your answer.
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उत्तर
The waveform of noise is irregular, discontinuous, and non-periodic while the waveform of a musical note is regular, continuous, and periodic.
These waveforms are shown in the figure given below:
संबंधित प्रश्न
What are mechanical waves?
Point out the waves from the given list, i.e., light, sound, radio waves, ultrasonic waves, and thermal radiation, the energy is propagated by mechanical waves.
Write the approximate value of the speed of sound in iron.
State two factors on which the natural frequency of a body depends.
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
(i) A man stands at a distance of 68 m from a cliff and fires a gun. After what time interval will he hear the echo, if the speed of sound in air is 340 ms−1?
(ii) If the man had been standing at a distance of 12 m from the cliff would he have heard a clear echo?
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
