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प्रश्न
Distinguish between longitudinal and transverse waves.
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उत्तर
| Longitudinal waves | Transverse waves |
| Particles of the medium vibrate back and forth in the same direction in which the wave travels. | Particles of the medium vibrate up and down at right angles to the direction in which the wave travels. |
| They can be formed in solids, liquids, and gases. | They can be formed in solids and liquids, but not in gases. |
| Example: Sound waves. | Example: Ripples in water. |
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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 |
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
Is pitch same as frequency?
Arrange the speed of sound in gases Vg, solids Vs and liquids VLin an ascending order.
Select the correct option:
The longitudinal waves can propagate only in
Can you hear the sound produced due to the vibrations of second's pendulum?
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
Number of vibrations produced in one second is ______.
Name three animals which can hear ultrasonic vibrations.
Write any two uses of ultrasonic sound.
