Physics Wave and Sound Basics of Mechanical Waves and Amplitude of the Waves Single Correct MCQ
Published on: September 12, 2026

Frequency range of the audible sounds is

A
0 Hz – 30 Hz
B
20 Hz – 20 kHz
C
20 kHz – 20,000 kHz
D
20 kHz – 20 MHz

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Text Solution

Verified by Experts
The correct answer is:
B
Step 1: Understand the range of audible sounds for humans.
The human ear is typically able to detect sounds in the frequency range of about 20 Hz to 20 kHz (20,000 Hz).
Step 2: Evaluate the options provided:
  • Option A: 0 Hz – 30 Hz is below the lower limit of human hearing.
  • Option B: 20 Hz – 20 kHz is the correct range for human hearing.
  • Option C: 20 kHz – 20,000 kHz is an incorrect range, as 20,000 kHz (or 20 MHz) is well above human hearing.
  • Option D: 20 kHz – 20 MHz also exceeds human hearing.
Conclusion: The correct answer is Option B: 20 Hz – 20 kHz.

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