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Agata [3.3K]
3 years ago
8

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

Physics
1 answer:
Kobotan [32]3 years ago
3 0

Answer:

freq= 200/50= 4 Hz

.............

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R_s=\left | \dfrac{n_1cos\theta_i-n_2cos\theta_t}{n_1cos\theta_i+n_2cos\theta_t} \right |^2\\R_p=\left | \dfrac{n_1cos\theta_t-n_2cos\theta_i}{n_1cos\theta_t+n_2cos\theta_i} \right |^2

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sin \theta_t = \dfrac{n_1sin\theta_i}{n_2}=\dfrac{sin45^0}{1.5}=\dfrac{\sqrt{2}}{3}

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