How sound is classified on the basis of Frequency?
Answers
Explanation:
These frequency ranges vary between individuals. These values are average values.
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So we can talk about:
Infrasounds: those oscillations with a frequency less than 20 Hz (not perceptible by humans).
Audible Sounds: between 20 and 20. 000 Hz.
Ultrasounds: over 20. 000 Hz. Also unnoticeable.
Answer:
Frequency: Frequency of sound is indicated by nu (υ)
i) Audible sound - Sounds which human ears can hear are called as Audible sounds. Or The sounds between frequency 20Hz to 20000Hz are called as Audible sounds.
- Frequency of this sounds is between 20Hz to 20000Hz (20KHz)
ii) Infrasonic sounds - Sounds with frequency less than 20Hz are called as Infrasonic sounds.
- Eg: Sounds produced by pendulum, Sound produced by earth before earthquake.
iii) Ultrasonic sounds - Sounds with frequency greater than 20000Hz are called as Ultrasonic sounds.
- Dog, Mouse, Bats have special type of ability to hear this sounds
Explanation:
Hope it helps!