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प्रश्न
What are infrasonic and ultrasonic sounds?
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उत्तर
Sound having frequency less than 20Hz is called infrasonic sound. Sound having frequency greater than 20KHz is called ultrasonic sound.
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संबंधित प्रश्न
Complete the following sentence:
Ultrasound is of frequency ___________.
Complete the following sentence:
Infrasonic sound is of frequency ______________.
Complete the following sentence:
Bats can produce and hear ___________ sound.
Name the sound of the frequency given below:
1000 Hz
Can you hear the sound produced due to vibrations of a seconds pendulum? Give reasons.
What do you understand by the term ultrasonic vibrations?
State four practical uses of ultrasonic vibrations.
What are ultrasonic? State and explain two applications of ultrasounds.
State the properties of ultrasound that make it useful.
1 hertz is equal to
