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प्रश्न
The safe limit of loudness of audible sound is
विकल्प
0 to 80 dB
above 80 dB
120 dB
above 120 dB
उत्तर
0 to 80 dB
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संबंधित प्रश्न
What do you understand by the loudness of sound?
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Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
