How many times intense is 80 dB sound than a 20 dB sound?

How many times more intense is a 90 dB sound than a 40 dB sound?

How Many times more intense is a 60 dB sound than a 30 dB sound ?

How many time are taken intense is 90dB sound than 40dB sound?

(a) The power of sound from the speaker of a radio is 20 mW. By turning the knob of volume control the power of sound is increased to 400 mW, What is the power increase in dB as compared to original power? (b) How much more intense is an 80 dB sound than a 20 dB whisper?

How much intense is 80 dB sound in comparision to 40 dB?

(a) What is the intensity of a 60 dB sound ? (b) If the sound level is 60 dB close to a speaker that has an area of 120 cm ^(2) . What is the acoustic power output of the speaker?

A brief exposure to 150 dB sound may

Statement I: A 80 dB sound has twice the intensity of a 40 dB sound. Statement II: Loudness of a sound of a certain intensity I is defined as L("in "dB)=10log_(10)=(I)/(I_0)