Musical notes consist of the combination of sounds of regular frequency
The combination of overtones produced by an instrument determines the quality of the sound
the loudness of sound is determined by its frequency
the pitch of a note depends on the frequency of vibration of the source
Noise can be produced by a combination of sounds of irregular frequency
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The correct answer for this is optionC because loudness depends on the quality while pitch depends on the frequency of the note

Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

Please do justice to this question it is not correct loudness is not determined by frequency but it is determined by amplitude please change it ,C is the correct answer



