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प्रश्न
State the main components of a hearing aid.
एक पंक्ति में उत्तर
उत्तर
The main components of hearing aid are microphone , amplifier and earphone.
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संबंधित प्रश्न
Which has the higher frequency - ultrasonic sound or infrasonic sound?
Name the sound of the frequency given below:
10 Hz
Name the sound of the frequency given below:
100 Hz
Name the sound of the frequency given below:
40 kHz
Can you hear the sound produced due to vibrations of a seconds pendulum? Give reasons.
A man can hear the sound of frequency :
What do you understand by the term infrasonic vibrations?
Does SONAR make use of infrasonic sound?
What does SONAR stand for? Where do we make use of SONAR?
Ultrasound has frequency of vibration
