Question
If the amplitude of a wave is doubled, what will be the effect on its loudness ?
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Text solutionVerified
Loudness depends on the square of the amplitude of the wave.
That is,
Thus, when amplitude of the wave is doubled, the loudness becomes four times.
That is,
Thus, when amplitude of the wave is doubled, the loudness becomes four times.
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Question 2
Science fiction films often show battles between spaceships. Four friends were arguing what would someone in space hear if an enemy spaceship exploded?Rekha said, 'they would hear a big explosion.'
Renu saud,'they will not hear anything as there is no medium for sound to travel, but they can see the explosion.'
Ramesh said, 'yes, they will not hear anything and they will not be able to see the explosion.'
Raghav said,'the explosion produces sound of frequency above 20,000 Hz hence we cannot hear it.'
Who is correct?
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Question Text | If the amplitude of a wave is doubled, what will be the effect on its loudness ? |
Answer Type | Text solution:1 |
Upvotes | 150 |