Choose the infrasonic waves and ultrasonic waves from the following frequencies:

(i) 10,000 Hz (ii) 30,000 Hz

(iii) 18 Hz (iv) 50,000 Hz

(v) 10 Hz

What is the range of frequencies associated with

(a) infrasound

(b) audible sound, and range of the frequeny

What is the difference between infrasonic waves and ultrasonic waves?

What is the frequency range of hearing in humans?

Which of the following sound frequencies cannot be heard by a human ear?

(i) 10 Hz (ii) 100 Hz

(iii) 10,000 Hz (iv) 15 Hz

(v) 40,000 Hz