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प्रश्न
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
रिकाम्या जागा भरा
उत्तर
An average person can hear sound of frequencies in the range 20 Hz to 20 kHz.
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संबंधित प्रश्न
Which has the higher frequency - ultrasonic sound or infrasonic sound?
Complete the following sentence:
Ultrasound is of frequency ___________.
Name the sound of the frequency given below:
40 kHz
State two applications of ultrasound.
Sonar makes use of :
What do you understand by the term ultrasonic vibrations?
Name three animals which can hear ultrasonic vibrations.
What does SONAR stand for?
What are ultrasonic? State and explain two applications of ultrasounds.
State the properties of ultrasound that make it useful.
