A public-address system is usually used in the school assembly to obtain better attention from students. Carry out a study on the factors affecting the audibility of sound.
The Attempt at a Solution
Objective: To study how does the frequency of the sound are affected by tension, length and material of the string. This objective was rejected by teacher. I had come up another objective which is to investigate the relationship between the amplitude and frequency and the loudness of sound was also rejected. Any other suggestions regarding this topic?[/B]