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10The frequency of sound depends on the source producing it.
Humans can hear sounds of all frequencies.
Children and girls generally have sharper voices due to higher frequency.
A male voice usually has a higher frequency than a female voice.
Infrasonic sound has a frequency less than 20 Hz.
Infrasound can be heard clearly by human ears.
Audible sound ranges from 20 Hz to 20 kHz.
Ultrasonic sound has more energy due to its higher frequency.
Ultrasound is commonly used in medical diagnosis.
SONAR works using audible sound waves.
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The range of frequency of audible sound is:
Sound having frequency greater than 20 kHz is called:
Which animal can produce and hear ultrasonic sound?
Which sound has a frequency less than 20 Hz?
Which animal can produce infrasound?
Which sound is used in USG machines?
The voice of boys becomes flat after physical maturity due to:
Ultrasound is useful in medical field because it:
SONAR is mainly used to measure:
Which sound can be felt but not heard by humans?
The frequency range of sound waves is from ______ Hz to 10^8 Hz.
Humans can hear sound between ______ Hz and 20 kHz.
Sound with frequency less than 20 Hz is called ______.
Sound with frequency more than 20 kHz is called ______.
The voice of females generally has a frequency of ______–300 Hz.
Audible sound can be perceived by ______ ears.
Ultrasound is used in ______ (USG).
SONAR works using ______ waves.
Infrasound is produced during ______.
Ultrasound has ______ wavelength.