The sound level produced by one singer is
80.2 dB.
What would be the sound level produced
by a chorus of 19 such singers (all singing at
the same intensity at approximately the same
distance as the original singer)?
Answer in units of dB.

93 dB

Explanation:

For 19 such singers then intensity will be

The intensity in dB will be

0.3x0.21x0.08kg=mass 1 sheet

mass 500 = 500xmass 1

volume pile = 0.3x0.2x0.048

density=mass/volume= 500xmass 1/0.3x0.2x0.048

v patient student

a and c

c is 100% but i am confused in a