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प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
Pitch of a sound depends on the _____ vibration.
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उत्तर १
The pitch of a sound depends on its frequency.
उत्तर २
Pitch of a sound depends on the frequency of the vibration.
संबंधित प्रश्न
Guess which sound has a higher pitch: guitar or car horn?
Write true or false for a given statement.
A sound is a form of energy.
Why are the waves mentioned by you not audible to us?
Name the two types of waves which can be generates in a long flexible spring (or slinky).
A stone is dropped on the surface of water in a pond. Name the type of waves produced.
What is sound? What type of waves are sound wave in air?
What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
What is a transverse wave? In which medium: solid, liquid or gas, can it be produced?
The distance between one crest and one trough of a sea wave is 4.5 m. If the waves are produced at the rate of 240/min, calculate the wave velocity.
Explain how the principle of echo is used by the dolphin to locate small fish as its prey.
What do you mean by the frequency of sound?
The sound waves travel faster ______.
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 |
Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also, define wavelengths and time periods using this curve.
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
Sound cannot travel through ______.
