Normal hearing:: (A) 20-20,000 hz, (B) 30 - 30,000 hz, (C) 200-2000 hz, (D) 300 - 3000 hz
Answer is A. Ans. (a) 20 - 20,000lizRef: Dhingrays ENT 6th ed./14-15* Normal hearing capacity is from 20 Hz to 20,000 Hz.* Function of hearing is by cochlea, which has 2 ends broadly. Apex and Base. Apex is for low frequency sound (20 Hz) and Base is for high frequency sound (20,000 Hz).