a source of wave produces 40 crests and 40 troughs in 0.4 sec. What is the frequency of the wave?
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Answered by
277
One crest and and one trough constitutes one cycle.
40 crests and 40 troughs involves 40 cycles.
Time taken for one cycle is called time period.
So, Time period = 0.4 s / (40) = 0.01 s
Frequency = 1 / Time period = 1 / (0.01 s) = 100 Hz
Image source: Wikipedia
40 crests and 40 troughs involves 40 cycles.
Time taken for one cycle is called time period.
So, Time period = 0.4 s / (40) = 0.01 s
Frequency = 1 / Time period = 1 / (0.01 s) = 100 Hz
Image source: Wikipedia
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Raj771:
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Answered by
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Answer:
The answer is 100Hz
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