Rearranging Equations?

[raid517]

Please can someone show me the steps needed to go about rearranging the equation Eph = hc/lambda to make lambda (the wavelength of the light) the subject? I'm totally stuck and I have an exam in the morning, I know it should be simple but I'm just not getting it. Any and all help is appreciated.

[imatfaal]

Multiply both sides by wavelength (and cancel out any term over itself) divide both sides by energy (and then cancel out again)

[khaled]

[math]Eph = \frac{hc}{\lambda}[/math]

[math]\frac{Eph \lambda}{Eph} = \frac{hc \lambda}{Eph \lambda}[/math]

[math]\lambda = \frac{hc}{Eph}[/math]

Edited July 24, 2011 by khaled