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Answer on Mechanics | Relativity Question for krissy

Question #2295
Two waves travel in the same medium at the same speed. One has wavelength 0.0382 m and frequency 9.67×106 Hz. The other has wavelength 0.0481 m. What is the period of the second wave?
answer in seconds.
Expert's answer
If the speed of waves is the same for each of it, λ1f1 = λ2f2.
0.0382*9.67×106 = 0.0481*f2,
f2 = 7.68×106 Hz.

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