UPSC Prelims 1995·GS1·science-and-technology·science and technology

When the same note is played on a sitar and a flute, the sound produced can be distinguished from each other because of the difference in

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  1. Apitch, loudness and quality
  2. Bpitch and loudness
  3. Cquality onlyCorrect
  4. Dloudness only

Explanation

The correct answer is C because of the following reasons: When the same note is played on different instruments, it means they have the same pitch frequency and the same loudness intensity. Pitch depends on frequency, and loudness depends on the amplitude of the sound wave. Since these are identical, they cannot be used to distinguish the sounds. Quality, also known as timbre, is the characteristic that allows us to differentiate between two sounds having the same pitch and loudness. This difference arises because different instruments produce different overtones or harmonics. A sitar and a flute produce different wave patterns or wave shapes, which our ears recognize as distinct qualities of sound.
science-and-technology: When the same note is played on a sitar and a flute, the sound produced can be distinguished from each other because of

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