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प्रश्न
Define wavelength term in relation to a wave.
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उत्तर
The distance travelled by the wave in one time period of vibration of a particle of medium is called its wavelength. It's S.I. unit is metre (m).
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संबंधित प्रश्न
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 m s−1 for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.
How is the frequency of a stretched string related to its length?
Define wave velocity term in relation to a wave.
Draw a labelled diagram to show the multiple reflections of sound in a part of the stethoscope tube.
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
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 |
