JEE Main 12 Apr 2019 Paper 2 Solved Paper
© examsiri.com
Question : 9 of 90
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 − 12 W ∕ m 1
[12 Apr 2019 Shift 2]
Go to Question: