Question

Rahul is playing the drums. Then which of the following characteristics of sound would result in increase in loudness?
A. Amplitude
B. Speed
C. Pitch
D. Quality

Answer 1

Hint: The loudness of a sound is directly proportional to its intensity. In other words, we can say that the higher the intensity of sound, the higher the loudness, and the lesser the intensity of sound, the lesser will be its loudness.

Complete step by step answer:
The loudness of a sound wave is defined by its amplitude, which means the amplitude, louder, will be produced by drums. The intensity and loudness of the sound wave produced by the drum depends on the vibrations produced in the drum, or we can say that the
amplitude of vibrations of sound will define its loudness. Mathematically, we can express loudness as the logarithmic value of the ratio of sound intensity in medium and free space.
The speed of the sound wave produced by the drum is the amount of distance traveled by it with respect to the time when it propagates in the surrounding. We consider high pitch when the sound wave has a higher frequency, and low pitch when the sound wave has a lower frequency. We can easily understand that the quality of sound cannot define its loudness.Therefore, based on the above explanation, the amplitude is that characteristic of sound, which would increase its loudness; hence option (A) is correct.

Note: We can note that the loudness is not directly related to the amplitude of the sound produced by the drum, but we should remember that the intensity of sound depends on its amplitude, and loudness depends on intensity; hence loudness depends on the intensity of sound.