Question

We are able to hear the sounds made by a source, if the frequency of sound is :

• A. Within audible range in air
• B. Within audible range in vacuum
• C. Within audible range in water
• D. Within audible range in $C{O}_2$

Answer 1

Answer: (A), (C), (D)

The correct options are
A Within audible range in air
C Within audible range in water
D Within audible range in $C{O}_2$

sound needs a medium to travel and to hear a sound it should be in audible range in any medium.

so the answer is A, C and D.