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27 September, 19:16

A visible violet light emits light with a wavelength of 4.00 * 10-7 m. Calculate the frequency of the violet light.

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  1. 27 September, 22:22
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    For any wave,

    Frequency = (speed) / (wavelength)

    = (3 x 10⁸ m/s) / (4 x 10⁻⁷ m)

    = (3/4 x 10¹⁵) (m / m - s)

    = (0.75 x 10¹⁵) / sec

    = 7.5 x 10¹⁴ Hz

    = 750,000 GHz
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