Audible vibrations have a frequency range of above 20,000 Hz. True or false.

True

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False

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Solution

The correct option is B False
The human hear can respond to minute pressure variations in the air if they are in the audible frequency range, roughly 20 Hz to 20,000 Hz. The vibrations above or below this range is not audible by human.

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Question 3 (d)
State whether the following statement is true or false.
For human ears, the audible range is 20 Hz to 20,000 Hz.

Q. The range of ________ vibrations is above 20,000 Hz

An open organ pipe has a length of 5 cm. (a) Find the fundamental frequency of vibration of this pipe. (b) What is the highest harmonic of such a tube that is in the audible range ? Speed of sound in air is $340 m s^{- 1}$ and the audible range is 20-20,000 Hz.

Q. Mechanical waves having a frequency above the audible range are called

Q. An open organ pipe has a length of

10 cm

. If the speed of sound in air is

340 m/s

and the audible range is

(20 - 20, 000 Hz)

, then choose the correct option(s):

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Audible vibrations have a frequency range of above 20,000 Hz. True or false.

The correct option is B FalseThe human hear can respond to minute pressure variations in the air if they are in the audible frequency range, roughly 20 Hz to 20,000 Hz. The vibrations above or below this range is not audible by human.

The correct option is B False
The human hear can respond to minute pressure variations in the air if they are in the audible frequency range, roughly 20 Hz to 20,000 Hz. The vibrations above or below this range is not audible by human.