Marko4600 Marko4600

26-04-2024
Physics

contestada

If the sound level at a point 10 m from the point source is 20 dB, then the sound level at distance 20 m from the same source will be about
(1) 18 dB
(2) 16 dB
(3) 14 dB
(4) 12 dB and when he is at a distance 1 km from the instrument

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