Problem 04|Physics 10|Unit 11|SOUND|KP Text Book|Physics-Mathematics-HUB

Problem 04|Physics 10|Unit 11|SOUND|KP Text Book|Physics-Mathematics-HUB.............

What sound intensity level in dB is produced by earphones that create an intensity of 4.00 × 10-2 W/m2? (Use the usual reference level of Io = 1.00 × 10-12 W/m2.


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