Waves Part 1

Section: Physics

Question : 44 of 100

Marks: +1, -0

A small speaker delivers 2 W of audio output. At what distance from the speaker will one detect 120dB in intensity sound? [Given reference intensity of sound as10−12W∕m1 ]

[12 Apr 2019 Shift 2]

10cm
20cm
40cm
30cm

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