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प्रश्न
A man can hear the sound of frequency :
पर्याय
1 Hz
1000 Hz
200 kHz
5 MHz
MCQ
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उत्तर
A man can hear the sound of frequency : 1000 Hz
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संबंधित प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
Complete the following sentence:
Bats can produce and hear ___________ sound.
Name the sound of the frequency given below:
10 Hz
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Sonar makes use of :
Ultraviolet radiation has a wavelength of 300Å. If the velocity of the electromagnetic wave is 3 × 108 ms-1. Calculate:
- frequency
- time period.
Does SONAR make use of infrasonic sound?
Is the energy carried by the ultrasound very high or very low?
State the main components of a hearing aid.
Bats produce ______ sound during screaming.
