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प्रश्न
Note is a sound
पर्याय
of a mixture of several frequencies
of a mixture of two frequencies only
of a single frequency
always unpleasant to listen
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उत्तर
Note is a sound of a mixture of several frequencies
संबंधित प्रश्न
What do you mean by a vibratory motion?
Describe an experiment to show the production of sound having low and high pitch.
How can the pitch of sound produced in a piano be changed ?
To detect the obstacles in their path, bats produce ______.
Which wave property determines pitch?
What is the vacuum? Explain why, sound cannot travel through vacuum?
Are sound waves longitudinal or transverse?
What is musical sound? Give an example.
Select the correct option:
In case of longitudinal waves, the particles of the medium vibrate:
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
On placing your ear close to an iron railing which is tapped some distance away, sound is heard twice. Explain, why?
Name the factors on which the speed of sound depends.
What is sound? Explain with example how does sound travel in a medium.
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
Unwanted sounds are called ______.
Write any two uses of ultrasonic sound.
Distinguish between compression and rarefactions.
