Answer to Question #177494 in Physics for Jerick

Question #177494
  1. An ocean wave travels at approximately 1.97 m/s. This is 4 miles per hour. The frequency of the waves is roughly 0.07 hz (or roughly 4 waves per minute). What is the Wavelength?

 

 

  1. Red visible light has a wavelength of 680 nanometers (6.8 x10-7 m). The speed of light is 3.0 x108 m/s. What is the frequency of red visible light?
1
Expert's answer
2021-04-01T18:33:44-0400

(a)

"v=f\\lambda,""\\lambda=\\dfrac{v}{f}=\\dfrac{1.97\\ \\dfrac{m}{s}}{0.07\\ Hz}=28.14\\ m."

(b)

"c=f\\lambda""f=\\dfrac{c}{\\lambda}=\\dfrac{3\\cdot10^8\\ \\dfrac{m}{s}}{6.8\\cdot10^{-7}\\ m}=441.2\\ THz."

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