Question

2. (a) What is the upper limit of frequency of human hearing?
(b) What is the lower limit of frequency of human hearing?
(c) Name one animal which can produce ultrasonic sounds.
(d) Name two animals which can hear ultrasonic sounds.​

Answer 1

Answer:

2o hz to 20,000khz human upper and lower limit

Answer 2

Answer:

20000Hz is max frequency of sound that a human can hear.

Explanation:

20 Hz is lower limit.

mice, bats, whales dolphins can produce and hear ultrasonic sound.