Question

A man can hear one of the following sounds having frequency

a) 10 Hz b) 400 Hertz c) 21,000 Hertz d) No frequency​

Answer 1

Answer:

b) 400 Hertz

Explanation:

Hearing range of human ears is from 20 hz to 20,000 hz

Answer 2

Answer:

b 400 hz

Explanation:

let's find it by eliminating

d is incorrect as we all can hear

c cannot be right because limit of a man ears is 20000hz

a cannot be right because minimum limit of a man is 20hz