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प्रश्न
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 |
जोड्या लावा/जोड्या जुळवा
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उत्तर
| Group ‘A’ | Group ‘B’ |
| (a) Flute | (3) Vibrations in the air |
| (b) Frequency | (4) Measured in Hz |
| (c) Sound level | (5) Decibel |
| (d) Ultrasonic sound | (2) Frequency more than 20000 Hz |
| (e) Infrasonic sound | (1) Frequency less than 20 Hz |
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Fill in the blank.
The number of times a body vibrates in one second is called its ______.
What is sound ?
On what factor does the loudness of a sound depend ?
What is the nature of sound waves in air?
What are the ultrasonic waves?
What causes sound?
The distance between three consecutive crests of wave is 60 cm. If the waves are produced at the rate of 180/ min, calculate:
- wavelength
- time period
- wave velocity.
Sound is a ______ wave and needs a material medium to travel.
The elastic property of medium is a factor of ______ medium.
Distinguish between compression and rarefactions.
