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What is Normal hearing: and explain in detail?
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).