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Consider the following statements. 1.Loudness of sound is measured in decibels (dB). 2.Quality of sound is related to the wavefront. 3.Loudness of sound is related to amount of sound passing each second through a unit area in a particular medium. 4.Light year is the unit of time. Which of the statements given above are true?

Correct Answer: 1, 2 and 3

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Physics MCQ: Consider the following statements. 1.Loudness of sound is measured in decibels (dB). 2.Quality of sound is related to the wavefront. 3.Loudness of sound is related to amount of sound passing each second through a unit area in a particular medium. 4.Light year is the unit of time. Which of the statements given above are true? | Extra Education