Choose the correct option from the table:

Music Noise
(A) Any unwanted sound that does not please our ears is called music Any sound that pleases our ears is termed noise
(B) It is produced by heavy-duty trucks, railway engines, horns, aircraft, cars, faulty loudspeakers, etc. It is produced by musical instruments such as sitar, guitar, violin, Keyboard, etc.
(C) Music has frequency and wavelength that are harmonious Noise has irregular waveform, wavelength, and low frequencies
(D) Music has a very soothing effect Noise has also a soothing effect
(E) None of the above/More than one of the above

This question was previously asked in
BPSC AE Paper 3 (General Studies) 24 March 2022 Official Paper
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  1. (A)
  2. (B)
  3. (C)
  4. (D)
  5. (E)

Answer (Detailed Solution Below)

Option 3 : (C)
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Detailed Solution

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The correct option is 'C'

  • In music, as frequency increases, wavelength decreases.
  • If a note has a very low frequency, it will have a very long wavelength.
  • If the frequency of a pitch is very high, its wavelength will be very short.
  • Hence frequency and wavelength are harmonious in music

Key Points

Music Noise
Any sound that pleases our ears is termed music Any unwanted sound that does not please our ears is called noise
It is produced by musical instruments such as sitar, guitar, violin, Keyboard, etc It is produced by heavy-duty trucks, railway engines, horns, aircraft, cars, faulty loudspeakers, etc.
Music has frequency and wavelength that are harmonious Noise has irregular waveform, wavelength, and low frequencies
Music has a very soothing effect

Noise does not have a soothing effect, it irritates

Additional Information

  • Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.
  • Infants can actually hear frequencies slightly higher than 20 kHz
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