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  • Calculating Wavelength of Light in a Vacuum: A Step-by-Step Guide
    Here's how to calculate the wavelength of light:

    Understanding the Relationship

    The speed of light in a vacuum (c) is a constant: approximately 299,792,458 meters per second. The relationship between the speed of light (c), frequency (f), and wavelength (λ) is:

    c = fλ

    Solving for Wavelength

    1. Rearrange the equation to solve for wavelength (λ):

    λ = c / f

    2. Plug in the values:

    λ = 299,792,458 m/s / 1.0 x 10^15 Hz

    3. Calculate:

    λ ≈ 2.9979 x 10^-7 meters

    Converting to Nanometers

    Since wavelengths of light are often expressed in nanometers (nm), let's convert:

    * 1 meter = 1 x 10^9 nanometers

    * λ ≈ 2.9979 x 10^-7 meters * (1 x 10^9 nm / 1 meter)

    * λ ≈ 299.79 nm

    Therefore, the wavelength of the light wave is approximately 299.79 nanometers.

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