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Q.

A two-fold increase in intensity of a wave implies an increase of (Given = log10⁡2=0.3010.)

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a

2 dB

b

10 dB

c

3.01 dB

d

0.5 dB

answer is C.

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Detailed Solution

L=10log10⁡II0 decibel L′=10log10⁡2II0 decibel L′−L=10log10⁡2II0    -     log10⁡II0=10log10⁡2=10×0.3010=3.01dB
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