ESE 2020Q55
Q: The sound level L is where Q = Measured quantity of sound pressure or sound intensity Q0 = Reference standard quantity of sound pressure
(a)log10 Q0/Q (bels)
(b)20 log10 Q/Q0 (bels)
(c)log10 Q/Q0 (bels)
(d)20 Q/Q0 + log10 Q/Q0 (bels)
Correct Answer: (c)
Detailed explanation coming soon.