defence exam Indian Army Nursing Assistant Mock Test Series 2025 Physics Waves Traveling Sound Waves
Which one of the following statements is not TRUE in regard to the hearing of sound?
1
The audible range of sound for human beings ranges between 20 Hz to 20 kHz.
2
Sounds of frequencies below 20 Hz are called infrasonic waves.
3
As human grow older, their ears remains equally sensitive for all frequencies.
4
Dogs can hear sounds having frequencies upto 25 kHz.