Which of the following is false for loudness of sound and amplitude of vibration? (A) Loudness of sound depends on its amplitude of the vibration. (B) Loudness of a sound is proportional to the square of the amplitude of the vibration producing the sound. (C) When the amplitude of vibration is large, the sound produced is loud. (D) If the amplitude of vibration is increased to 4 times of its initial value, then the loudness of sound becomes 6 times of its initial value.
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Option a
Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element in the periodic table. At standard conditions hydrogen is a gas of diatomic molecules having the formula H₂. It is colorless, odorless, non-toxic, and highly combustible.
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It is directly proportional to the square of the amplitude of vibration. If the amplitude of the sound wave becomes double, then the loudness of the sound will be quadrupled. It is expressed in decibel (dB). Sounds above 80 dB becomes noise to human ears.
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