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GATE ES · 2022 · ES

Question 42: Noise pollution

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Question 42

ESMCQ2 marksNeeds review
A relatively calm room has background sound power level (SPL) of 30 decibels (dB). A television and a radio with SPL of 80 dB and 70 dB, respectively, started operating simultaneously in this room. Given the reference sound power is

Watts, what will be the resulting SPL in the room, assuming all the sources operate independently?
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2022ES

GATE ES 2022 · Paper 1

Environmental Science and Engineering · Original paper archive

Section
Environmental Science and Engineering
Question type
Multiple choice (MCQ)
Marks
2 marks
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