By what factor is the intensity of sound at a rock concert louder than that of a whisper when the two intensity levels are 120 db and 21 db, respectively? c) 6.50x1010 a) 3.16x1010 d) 7.94x100 b) 1.58x1010 e) 3.98x109

d)

Explanation:

β₁ = sound level of sound at rock concert = 120 dB

β₂ = sound level of sound due to whisper = 21 dB

I₁ = Intensity of sound at rock concert

I₂ = Intensity of sound due to whisper

sound level of sound at rock concert is given as

              Eq-1

sound level due to whisper is given as

                         Eq-2

subtracting Eq-2 from Eq-1

0.863333

86%

hope this

c

explanation: