Question

8. Which of these sound frequencies cannot be
heard by the human ear?
a) 10 Hz
b) 200 Hz
c) 1000 Hz d) 10,000 Hz​

Answer 1

I think 10,000 hz
Ok

Answer 2

The range of hearing for a healthy young person is 20 Hz to 20,000 Hz. This is called audible range of frequency.

Hence option (a) 10 Hz