Which of the following is true of the loudness of sound? It
A
depends on the square of the amplitude of the vibrating body
B
is proportional to the distance of the observer from the source of the sound
C
is greatest in vacuum
D
is dependent in vacuum
Verified Correct Answer: A.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #28536)