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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
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
Write the audible range of frequency for the normal human ear.
Define the term intensity of a sound wave. State the unit in which it is measured.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
A stone is dropped on the surface of water in a pond. Name the type of waves produced.
State the general name of the waves in which the particles of the medium vibrate :
(i) in the same direction as wave.
(ii) at right angles to the direction of wave.
What is sound? What type of waves are sound wave in air?
Give two examples each of longitudinal waves and transverse waves.
At 20°C, the minimum distance of a person from a sound reflecting surface to hear an echo is :
Arrange the speed of sound in gases Vg, solids Vs and liquids VLin an ascending order.
Answer the following question :
Can sound travel in vacuum?
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
Select the correct option:
A longitudinal wave consists of:
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
Define one hertz.
Match the following.
| 1. | Tuning fork | The point where density of air is maximum |
| 2. | Sound | Maximum displacement from the equilibrium position. |
| 3. | Compressions | The sound whose frequency is greater than 20,000 Hz. |
| 4. | Amplitude | Longitudinal wave. |
| 5. | Ultasonics | Production of sound. |
Name three animals, which can hear ultrasonic vibrations.
Unwanted sounds are called ______.
What happens to the speed of sound when it gases from a solid to a gaseous state?
