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Chapter 20: Problem 2672

The band width of Audio signal is (A) \(20 \mathrm{HZ}\) (B) \(20 \mathrm{KHZ}\) (C) \(20 \mathrm{MHZ}\) (D) \(20 \mathrm{GHZ}\)

Short Answer

Expert verified
The standard human hearing range is from 20 Hz to 20,000 Hz (20 kHz). Therefore, the bandwidth of an audio signal is (B) 20 KHz or \(20 \times 10^3 \textrm{Hz}\).

Step by step solution

01

Determine the frequency range of human hearing

To identify the correct bandwidth for the audio signal, it is necessary to first understand the standard human hearing range. It generally ranges from 20 Hz to 20,000 Hz (20 kHz). This knowledge narrows down the options for the correct answer to the given exercise.
02

Choose the correct option

Since human hearing ranges from 20 Hz to 20 kHz, the bandwidth of an audio signal falls in this range. So, given the options available, the correct answer is (B) 20 KHz, which we can write as: \(20 \times 10^3 \textrm{Hz}\).

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