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10 August, 03:42

The sound level near a noisy air conditioner is 70 dB. If two such units operate side by side, the sound level near them would be The sound level near a noisy air conditioner is 70. If two such units operate side by side, the sound level near them would be 70 dB. 73 dB. 105 dB. 140 dB.

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  1. 10 August, 05:31
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    73 db

    Explanation:

    A single air conditioner is equivalent to 70 dB frequency. An extra air conditioning unit would therefore double the sound frequency. It does not, however, double the decibels to 140 dB. Instead, it adds only 3 dB to the 70 dB, making the total decibels of two air conditioning units equal to 73 db

    Hence the correct option is b that is 73 db
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