Quality of a musical note depends on A. Fundamental frequency B. Amplitude of the wave C. Harmonics present D. Velocity of sound in the medium

The correct answer is C. Harmonics present.

The quality of a musical note depends on the number and relative intensity of the harmonics present in the sound wave. The fundamental frequency is the

lowest frequency present in the sound wave, and it determines the pitch of the note. The harmonics are higher frequencies that are multiples of the fundamental frequency, and they give the note its timbre, or tone quality.

Amplitude is the height of the sound wave, and it determines the loudness of the note. Velocity of sound is the speed at which the sound wave travels, and it does not affect the quality of the note.

Here is a more detailed explanation of each option:

• Fundamental frequency: The fundamental frequency is the lowest frequency present in the sound wave, and it determines the pitch of the note. For example, a middle C has a fundamental frequency of 261.6 Hz.
• Amplitude: Amplitude is the height of the sound wave, and it determines the loudness of the note. A louder note has a higher amplitude.
• Harmonics: Harmonics are higher frequencies that are multiples of the fundamental frequency. They give the note its timbre, or tone quality. For example, a middle C has harmonics at 523.2 Hz, 784.4 Hz, 1046.8 Hz, and so on.
• Velocity of sound: The velocity of sound is the speed at which the sound wave travels. It does not affect the quality of the note. The velocity of sound in air is about 343 meters per second.

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