Question

differences between audible sound and Infrasound in points .

Answer 1

Answer. Answer: The main difference between infrasonic and audible sound is: The infrasonic sound is lower in frequency, which is less than 20Hz, i.e. lower than the frequency that can be heard by humans and hence are not audible to them.

Answer 2

Required solution :-

Audible sound :-

• Audible waves are waves that lie within the range of sensitivity of the human ear.

• The human ear can detect frequencies between 20 Hz and 20 kHz.

• Examples of sources producing audible sound are: Drums, guitar strings, human vocal, loudspeakers etc. are examples that produce audible sound.

Infrasound :-

• Infrasonic waves are waves having frequencies below the audible range.

• Infrasound has frequencies less than 20 Hz.

• Examples: Whales, elephants, giraffes, hippopotamuses, rhinoceroses etc. use infrasound to communicate over distances.

Points to remember :-

Properties of sound :-

• Wavelength
• Time-period
• Amplitude
• Timbre
• Speed of wave

Types of sound :-

• Audible sound
• Inaudible sound