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Grade: 10
         If the intensity of sound is doubled, by how many decibels does the sound level increase?
5 years ago

Answers : (1)

Jitender Pal
askIITians Faculty
365 Points
							Sol. We know that, β = 10 log base 10 J/I base 0
According to the questions
β base A = 10 log base 10 (2I/I base 0)
⇒β base B – β base A = 10 log (2I/I) = 10 × 0.3010 = 3 dB.

						
5 years ago
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