the time period of the periodic wave is 0.02 second at a particular position there is a crashed at t = 0 a trough appear at this position at t =?
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Time period = 0.02 sthis is the time taken to complete one wave.one wave consist one crest and one trough.After 0.02/2 = 0.01 seconds trough will occur.
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Answer:
The time is taken by the whole wave to be complete but if we talk about a trough then it take half of the time hence,
Trough=0.02÷2=0.01s
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