Question

What kind of sound noise or music is represented by the sound wave shown here.

Answer 1

Hint: To give an appropriate solution to the given question, we need to get briefed up about features of musical sounds and noise.
Music and noise are both the mixtures of sound waves of different frequencies.
The component frequencies of music are discrete or separable and rational with a discernible dominant frequency whereas the component frequencies of noise are continuous i.e. every frequency will be present over some range and random with no discernible dominant frequency.

Complete answer:
A musical sound is generally periodic and regular, compared to noise which is irregular and non-periodic. Both are mixtures of sounds of different frequencies but as already mentioned in hint, frequencies in musical sound are discrete and rational but noise frequencies are continuous and irregular.
In a musical sound, wave patterns are generally recurring whereas a noise has irregular wave patterns, as it can be observed in the given figure we have repeating patterns, therefore it can be concluded that it is a musical sound.
Hence, the correct option is a musical sound.

Note:
One is advised to remember that apart from the list of differences between musical sounds and noise, we could briefly differentiate between them by saying that music is ordered sound whereas Noise is disordered sound as the basic distinction between them is mathematical form.