(a) What is the frequency range of hearing in humans?
(b) 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
(a) The frequency range of hearing in humans is 20 Hz - 20,000 Hz
(b) (i), (iv) and (v)