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प्रश्न
The sound of which of the following frequency is audible to us?
2 Hz, 1000 Hz, 200 kHz, 8 MHz
एक पंक्ति में उत्तर
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उत्तर
The sound of 1000 Hz frequency will be audible to us. Others 2Hz is the infrasonic sound frequency and 200 kHz, 8 MHz is ultrasonic sound frequency.
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संबंधित प्रश्न
Name the two types of waves which can be generates in a long flexible spring (or slinky).
What are infrasonics?
Define the term wavelength applied to a sound wave.
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 |
Can we produce sound in vacuum?
A list of mediums is given below.
- wood
- water
- air
- vacuum
In which of these mediums can sound travel?
Longitudinal waves are produced in solids liquids and also in gases.
What types of medium are required for sound to travel?
Explain the types of mechanical waves.
Distinguish between compression and rarefactions.
