What type of wave is represented by density-distance graph?
A
Transverse wave
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B
Longitudinal wave
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C
Water waves
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D
Light waves
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Solution
The correct option is A Longitudinal wave Longitudinal wave is represented by density-distance graph. Longitudinal waves consists of compression and rarefaction in the medium. In the compression area air density is higher than the normal air density while in the rarefaction zone the air density is lower than the normal air density. Variation in the density occurs periodically as the wave travels.