1.

Which frequency produces a sound that can be heard by a person? (A) 100 kHz (B) 40 kHz (C) 2 kHz (D) 30 kHz

Answer»

Correct option (C) 2 kHz  

Explanation:

The audible frequency range for us human beings is about 20 Hz to 20,000 Hz (20 kHz). 

2 kHZ lies between 20 Hz to 20 kHz.



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