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Math Help - Rearranging Equations?

  1. #1
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    Rearranging Equations?

    Hi how would I go about rearranging the following equation to make \lambda the subject?

    Eph = hc\ \lambda

    where Eph is the energy of a photon, h is Planck's constant, c is the speed of light and lambda is of course the wavelength.

    I have an exam in the morning and I'm afraid I forget how to do this.
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  2. #2
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    Quote Originally Posted by jebus197 View Post
    Hi how would I go about rearranging the following equation to make \lambda the subject?

    Eph = hc\ \lambda

    where Eph is the energy of a photon, h is Planck's constant, c is the speed of light and lambda is of course the wavelength.

    I have an exam in the morning and I'm afraid I forget how to do this.
    you have the equation

    E_{ph}=\frac{hc}{\lambda} \iff \lambda E_{ph}=hc \iff \lambda =\frac{hc}{E_{ph}}
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  3. #3
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    I dig it. Thanks man...
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