GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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no existence
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an object existence
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a subject existence
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both subjective and objective existence
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Detailed explanation-1: -Intensity of sound has objective existence.
Detailed explanation-2: -So, loudness is a subjective quantity while intensity being a measurable quantity is an objective quantity for the sound wave.
Detailed explanation-3: -The intensity of a sound is the power of the sound in Watts divided by the area the sound covers in square meters. The loudness of a sound relates the intensity of any given sound to the intensity at the threshold of hearing. It is measured in decibels (dB).
Detailed explanation-4: -Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound. Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves.
Detailed explanation-5: -The frequency of a sound wave is equal to the vibration rate, and the intensity depends on the amplitude.