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Sunday, 17 November 2013

Q.No.160: - Will two separate 50dB sounds together constitute a 100dB sound? Explain.

Q.No.160: - Will two separate 50dB sounds together constitute a 100dB sound? Explain.

Ans: - No, two separate 50dB sounds together do not constitute a 100dB sound because dB is an exponential scale. Each ten dB increase in sound makes the sound ten times louder. An increase of 50dB makes the sound 104 times louder. Hence it will not make 100dB but twice as loud is an increase of 10Log (2) = 3.01dB. So 53.01dB is twice as loud as 50dB. 

7 comments:

Unknown said...

103db

Unknown said...

and 3x 50db?

Unknown said...

10log(2)=3.01.so 53.01dB??????

Unknown said...

So what would 6000 @ 75db equate to?

Unknown said...

i dont understand solve it with example

Unknown said...

kindly give the answer by solution.

Unknown said...

No it will not make 100db because the decible scale is a logarithmic measure of the amplitude of sound waves. In a logarithmic scale,equal intervals correspond to multiplying by 10 instead of adding equal amounts

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