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What will be the resultant decibel level when two sources make noise of equal decibels?

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Remember: \[ \boxed{ \text{Equal sound levels} \Rightarrow +3\text{ dB} } \] Examples: \[ 60\text{ dB}+60\text{ dB}=63\text{ dB} \] \[ 70\text{ dB}+70\text{ dB}=73\text{ dB} \]

Updated On: Jul 23, 2026

Decibel level will be the same
Decibel level will increase by \(3\) decibels
Decibel level will decrease by \(3\) decibels
Decibel level will be equal to the sum of decibels of the two sources

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The Correct Option is B

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What will be the resultant decibel level when two sources make noise of equal decibels?

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The Correct Option is B

Solution and Explanation

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