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Question
If the pressure amplitude of any sound wave is increased by 100 %, then what is the % increase in its intensity ?
If the pressure amplitude of any sound wave is increased by 100 %, then what is the % increase in its intensity ?
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Solution
The correct option is B 300 %
Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.
The generally accepted standard range of audible frequencies is 20 Hz to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.
Hence, only the sound with frequencies in the audible frequency range can be heard and the rest cannot.
Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.
The generally accepted standard range of audible frequencies is 20 Hz to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.
Hence, only the sound with frequencies in the audible frequency range can be heard and the rest cannot.
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