Question

A student is standing a distance of 4 m from the school bell. If the student moves to a distance 20 m away, what fraction of the original intensity of the bell’s sound will the student hear?

Answer 1

Fraction=1/5=0.2

Explanation:

If the student is 4m away from the school bell and moves 20m away, it means that he is 5 times more distant from the school bell and therefore should listen 5 times less, that is, 1/5 of the original sound.

Note: this as long as the initial environment conditions of 4m are the same at 20m