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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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