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Q.

Is it true that the graph below the dotted line represents a female voice?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
The fineness or heaviness of the voice depends on the frequency of the sound. Fine sound represents high frequency and vice versa. The frequency of a female voice has a higher frequency than that of a male voice. In the graph given, since the dotted line changes its direction maximum times, it can be said that it has high frequency and thus represents a female voice.
 
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