MDCAT Physics MCQ #4004

If the intensity of a sound increases 1000 times, its decibel level increases by:

MDCAT Physics MCQ #4004

  1. Question 1

    Q1. If the intensity of a sound increases 1000 times, its decibel level increases by:

    • A) 10 dB
    • B) 30 dB
    • C) 100 dB
    • D) 1000 dB

    Answer: 30 dB

    Explanation: β = 10 log(I₂/I₁). Option A assumes a 10-fold increase.