GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the sound wave.
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the volume.
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the amplitude.
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the pitch.
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Detailed explanation-1: -Loudness is measured in units called decibels. Loudness is proportional to the square of the amplitude.
Detailed explanation-2: -Sound amplitude causes a sound’s loudness and intensity. The bigger the amplitude is, the louder and more intense the sound. Sound intensity is measured in Watts per meters squared.
Detailed explanation-3: -Loudness is the noise level perceived by an individual, whereas volume is an absolute noise level that can be scientifically measured.
Detailed explanation-4: -How did the word “volume” become associated with sound? It is easy to visualise sound as waves reaching you thro’ the (fluid) medium of air and when the sound becomes loud, a huge volume of air reaches your ears. This is the origin of volume of sound.
Detailed explanation-5: -(c) Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity of the sound waves. Was this answer helpful?