ICSE Class 9 Answered
A source of wave produce 40 created 20 throughs in 0.45 seconds what is the frequency of the wave??
Asked by vri1602 | 09 Oct, 2020, 04:42: PM
Expert Answer
Question: -
A source of wave produces 40 crests and 40 troughs in 0.45 s.What is the frequency of the wave?
Solution: -
We know that one crest and one trough makes one cycle.
So here, 40 cycles are involved as per the given statement.
These 40 cylces are produced in 0.45 s ...(Given)
Time period = time taken/ total oscillations = 0.45/40 = 0.011 seconds.
Frequency = 1/T = 1/0.011 = 90.90 Hz.
Answered by Shiwani Sawant | 09 Oct, 2020, 08:29: PM
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