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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 is the condition necessary for an echo to be heard distinctly?
What is a megaphone ? Name the principle on which a megaphone works.
Draw a labelled diagram to show the multiple reflections of sound in a part of the stethoscope tube.
Write the approximate value of the speed of sound in iron.
What are fishing boats?
State two factors on which the natural frequency of a body depends.
A type of electromagnetic wave has a wavelength of 50 Å. Name the wave and state one use of this type of wave.
Match the following:
| 1. | Stethoscope | a. | Repeated reflections |
| 2. | Echogram | b. | Multiple reflections |
| 3. | SONAR | c. | Ultrasonic waves |
| 4. | Reverberation | d. | Speed of underwater objects |
