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प्रश्न
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
उत्तर
Quality of sound is that characteristic which helps us identify a particular person. Sound produced by two persons may have the same pitch and loudness, but the quality of the two sounds will be different.
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संबंधित प्रश्न
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
Select the correct option:
In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
A sound wave of wavelength 1/3 m has a frequency 996 Hz. Keeping the medium same, if frequency changes to 1328 Hz. Calculate
- velcoity of sound
- new wavelength.
What causes sound in air?
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Sound is a ______ wave and needs a material medium to travel.
Why does an empty vessel produce more sound than a filled one?
What do you understand by the term echo?
