Question

The audible range of frequency of sound waves for human beings is ___________
A. $10\,{\text{Hz}}$ to $10,000\,{\text{Hz}}$
B. $20\,{\text{Hz}}$ to $20,000\,{\text{Hz}}$
C. $5\,{\text{Hz}}$ to $50,000\,{\text{Hz}}$
D. $50\,{\text{Hz}}$ to $20,000\,{\text{Hz}}$

Answer 1

To find the audible range of frequency of sound waves for human beings, first understand what is meant by audible range of frequency of sound waves. Then recall the lowest audible frequency of sound wave for human beings and the highest audible frequency of sound wave for human beings, from this you will get the frequency range audible to human beings.

Complete answer:
We are asked to select the audible range of frequency of sound waves for human beings from the given options.First let us know the meaning of the audible range of frequency of sound waves. By audible range of frequency of sound waves for human beings we mean the frequency range of sound waves within which human beings can detect sounds.

The lowest frequency of sound wave audible to human beings is $20\,{\text{Hz}}$ and the highest frequency of sound wave audible to human beings is $20,000\,{\text{Hz}}$.Therefore, the frequency range of sound waves within which human beings can detect sounds is $20\,{\text{Hz}}$ to $20,000\,{\text{Hz}}$.That is, the audible range of frequency of sound waves for human beings is $20\,{\text{Hz}}$ to $20,000\,{\text{Hz}}$.

Hence, the correct answer is option C.

Note: Other than the range of frequency of sound waves audible to human beings, there are two classifications, these are infrasonic sound and ultrasonic sound. The sound waves which have frequencies lower than $20\,{\text{Hz}}$ are called infrasonic sound and the sound waves which have frequencies higher than $20,000\,{\text{Hz}}$ are called ultrasonic sound.