Question

    The unit of measurement of noise is –

    A Decibel Correct Answer Incorrect Answer
    B Hertz Correct Answer Incorrect Answer
    C Amplifier Correct Answer Incorrect Answer
    D Acoustics Correct Answer Incorrect Answer

    Solution

    The decibel (dB) is the unit used to measure the intensity of sound or noise level. It is given in terms of a logarithmic function of a ratio of power intensities. One decibel is one tenth of one bel, named in honor of Alexander Graham Bell who was the inventor of the telephone and phonograph.

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