Question

A pure sine wave is called-
A. chord
B. melody
C. tone
D. overtone

Answer 1

We at first need to know what is a sine wave as a sine wave is involved in EMF produced by the flux it is also involved in psychoacoustics. When we further try to know about the sine wave we come to know that a sine wave is dependent upon some factors which helps us to figure out what a pure sine wave is called.

Complete step by step answer:
At first we must know what is a sine wave, so in a pure sine wave the power flows in an even form, whereas in a modified sine wave the power flows in a square, chunky wave.
When we plot in a sinusoidal waveform we can figure out that the generated EMF is zero as the coil which produces sine waves cuts the minimum amount of lines of flux. This type of wave that is formed is known as sine wave because it is generally plotted or based on the trigonometric sine function.
Now in this question we see that mainly this sine wave is related to music so EMF and all should not be involved in it.
Now, we know that in psychoacoustics a pure tone is a sound which exhibits a sinusoidal waveform.
A sine wave is always characterized by the frequency of its wave, so we can say that a pure sine wave with a certain frequency is known as a Tone.

So, the correct answer is “Option C”.

Note: Tone is actually a vocal or musical sound which has a reference to its pitch, strength and quality. It is a particular way of sounding as the voice always expresses some feeling or spirit of its own.