The ratio of intensities between two coherent sound sources is $4:1$. The difference of loudness in decibels $\left( {{\rm{dB}}} \right)$ between maximum and minimum intensities, on their interference in space is

JEE PHYSICS MCQ: WAVES

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The ratio of intensities between two coherent sound sources is

4:1

. The difference of loudness in decibels

\left( {\mathrm{dB}} \right)

between maximum and minimum intensities, on their interference in space is

View answer and explanation

Correct option: C

20\,\,\log 3

Option C (

20\,\,\log 3

) is correct because the difference in loudness is calculated using the ratio of maximum to minimum intensities, which depends on the amplitude ratio of the sound sources.

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