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Q.

On take - off, an aeroplane generates noise level of 120 dB. If 5 such aeroplanes take - off simultaneously what will be the noise level ?

[A] ~ 126.98 dB

[B] ~ 124.98 dB

[C] ~ 123.86 dB

[D] ~ 122.98 dB

Answer & Explanation
Answer: ~ 126.98 dB

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