Oscillations and Waves: JEE Main 2007 Physics question

JEE Main 2007 · Annual, Paper 1 · Q8477

JEE Main 2007Annual, Paper 1PhysicsMediumOscillations and Waves185× since 2002

A sound absorber attenuates the sound level by

20

dB

. The intensity decreases by a factor of

JEE Main 2007 · Annual, Paper 1 · Q8477

JEE Main 2007Annual, Paper 1PhysicsMediumOscillations and Waves185× since 2002

A sound absorber attenuates the sound level by

20

dB

. The intensity decreases by a factor of

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