During wave propagation, low and high pressure regions are represented by ___ and ___ respectively on a graph.
A
trough, crest
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B
peaks, valleys
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C
crest, trough
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D
valleys, peaks
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Solution
The correct option is B peaks, valleys Sound propagates through pressure variations in a gaseous medium. The region of high pressure is represented by a peak on the graph while the region of low pressure is represented by a valley in the graph.