Question #a23ec

2 Answers
Dec 27, 2017

96 dB

Explanation:

...according to this little link, here

...if by "intensity" we interpret as "sound pressure". In which case, +6 db makes it twice as intense.

GOOD LUCK

Dec 27, 2017

The answer is =93dB

Explanation:

The definition of the decibel scale is

I_(dB)=10log_(10)(I/I_0)

where,

I_0=1*10^(-12)

Therefore,

If I_(dB)=90=10log_(10)(I/I_0)

Then,

The new decibel level will be

I_(dB)'=10log_(10)((2I)/I_0)=10log_(10)2+10log_(10)(I/I_0)

10log_(10)2=10*0.3=3

I_(dB)'=3+90=93