MDCAT Physics MCQ #3996

A sound wave has an intensity of 10⁻⁶ W/m². Calculate its decibel level (I₀ = 10⁻¹² W/m²).

MDCAT Physics MCQ #3996

  1. Question 1

    Q1. A sound wave has an intensity of 10⁻⁶ W/m². Calculate its decibel level (I₀ = 10⁻¹² W/m²).

    • A) 60 dB
    • B) 70 dB
    • C) 80 dB
    • D) 90 dB

    Answer: 60 dB

    Explanation: β = 10 log(I/I₀). Option C adds 10 dB erroneously.