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Physics

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An EM wave has a wavelength of 620 nm.
What is its frequency?
How would we classify it?

  • Physics -

    620 nm = 620*10^-9 m. = 6.2*10^-7 m.

    L = V/F.
    F = V/L = 3*10^8m/s / 6.2*10^-7m = 4.839*10^14 cycles/s = 4.839*10^14 Hz.

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