An electromagnetic wave of frequency 7.55 x 10^14 Hz propagates in carbon tetrachloride with a speed of 2.05 x 10^8 m/s. What is the wavelen

Question

An electromagnetic wave of frequency 7.55 x 10^14 Hz propagates in carbon tetrachloride with a speed of 2.05 x 10^8 m/s. What is the wavelength of the wave in carbon tetrachloride?
A. 3.38 x 10^-7 m
B. 3.61 x 10^-7 m
C. 3.97 x 10^-7 m
D. 3.01 x 10^-7 m
E. 2.72 x 10^-7 m

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Khoii Minh 4 years 2021-08-21T21:17:53+00:00 1 Answers 20 views 0

Answers ( )

  1. mit
    0
    2021-08-21T21:19:23+00:00
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    Answer:

    2.72*10^-7m

    Explanation:

    Using the formula

    v = fλ

    v is the speed

    f is the frequency

    λ is the wavelength

    Substitute for λ

    λ = v/f

    λ = 2.05 x 10^8/7.55 x 10^14

    λ = 2.05/7.55 * 10^{8-14}

    λ = 0.272 * 10^-6

    λ = 2.72*10^-7m

    Hence the wavelength of the wave in carbon tetrachloride is 2.72*10^-7m

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