Question

Q.2. Loudness in decibel is
times loudness in bel
*
O a) 10
b) 100
O c) 1000
O d) 1​

Answer 1

One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio. Expressed as a formula, the intensity of a sound in decibels is 10 log10 (S1/S2), where S1 and S2 are the intensity of the two sounds; i.e., doubling the intensity of a sound means an increase of a little more than 3 dB.