In which of the following, two sounds of same loudness and same pitch produced by two different instruments differ?

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Amplitudes

Frequencies

Wave-forms

All of the above

answer is C.

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Detailed Solution

Concept: Breadth is principally one of the parcels of a surge. The breadth of a surge refers to the maximum volume of a flyspeck being displaced from its position of rest on the medium. The breadth is, in a way, the gap from rest position to crest position. Also, the breadth can be determined from the position of the rest to the position of the trough. The breadth may be determined as the length of a line member that's vertical to the position of rest and stretches vertically overhead from the position of rest to the position of the crest or the position of the trough.
Wave frequency is the number of swells which pass a fixed point in a given quantum of time. Wave frequency can be calculated by counting the number of surge ridges( high points) that reach the fixed point within 1 alternate or any other period of time. The advanced the number, the further the frequency the swells will have. The SI unit of surge frequency is pertained to as hertz( Hz) , where 1 hertz is equal to 1 surge which passes a fixed point within 1 second.
A waveform defines a surge by graphing how a flyspeck of air is displaced with time. Similar wave-forms are said to be periodic, since a constant tone can be generated by repeating the surge they reflect. The more the surge reprises, the lesser the sound's pitch. Breadth also translates into loudness for the mortal observance and hence results in adding the breadth of a sound which will increase how loud it'll feel to us.
The wave forms depend, along with the top note, on the number of the attachment notes and their relative breadth. also the waveform of the sound is attained through the attendant or net vibration which occurs by the superposition of multiple climates available.
Thus, two sounds of the same loudness and same pitch produced by two different instruments will differ in their wave-forms.
Hence, option 3 is correct.

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