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प्रश्न
Is pitch same as frequency?
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उत्तर
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संबंधित प्रश्न
Distinguish between loudness and intensity of sound.
Distinguish between longitudinal and transverse waves.
What is sound? What type of waves are sound wave in air?
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.
Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
Match the pairs.
| Group ‘A’ | Group ‘B’ |
| (a) Flute | (1) Frequency less than 20 Hz |
| (b) Frequency | (2) Frequency more than 20000 Hz |
| (c) Sound level | (3) Vibrations in the air |
| (d) Ultrasonic sound | (4) Measured in Hz |
| (e) Infrasonic sound | (5) Decibel |
Select the correct option:
In case of longitudinal waves, the particles of the medium vibrate:
What is approximate value of the speed of sound in iron as compared to that in air? Illustrate your answer with a simple experiment.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
What is the value of sound of room temperature?
