What is the wavelength of a 1.28 x 10^17 Hz wave?

Question

What is the wavelength of a 1.28 x 10^17 Hz wave?

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Bình An 1 year 2021-09-01T12:13:28+00:00 1 Answers 18 views 0

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    2021-09-01T12:14:56+00:00

    Answer:

    The wavelength of the wave is 2.34 nm.

    Explanation:

    It is required to find the wavelength of a [tex]1.28\times 10^{17}\ Hz[/tex] wave. A wave moves with a speed of light. Speed of a wave is given in terms of wavelength and frequency. So,

    [tex]v=f\lambda[/tex]

    [tex]\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{1.28\times 10^{17}}\\\\\lambda=2.34\times 10^{-9}\ m\\\\\text{or}\\\\\lambda=2.34\ nm[/tex]

    So, the wavelength of the wave is 2.34 nm.

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