## Double-Slit Formula

Here we derive the double-slit formula, which you can use, for example, to find the wavelength of light using a double-slit experiment.

Here we derive the double-slit formula, which you can use, for example, to find the wavelength of light using a double-slit experiment.

` $$ \nu ~=~ \frac{1}{\lambda} $$ `

` $$ k ~=~ 2\pi \, \nu $$ `

` $$ k ~=~ \frac{2\pi}{\lambda} $$ `

` $$ d_{\text{min}} ~=~ 0.61 \,\cdot\, \frac{\lambda}{n \, \sin(\varphi)} $$ `

` $$ \alpha_{\text c} ~=~ \arcsin\left( \frac{n_2}{n_1} \right) $$ `

` $$ n_1 \, \sin(\alpha_1) ~=~ \sin(\alpha_2) \, n_2 $$ `

Here you will learn about polarized light, i.e. linearly or circularly polarized electromagnetic waves, and what characterizes them.

` $$ \class{blue}{ v_{\text p} } ~=~ \frac{ \class{red}{ \lambda } }{ T } $$ `

` $$ v_{\text p} ~=~ \lambda \, f $$ `

` $$ \frac{1}{f} ~=~ \frac{n_{\text L} - n_{\text M}}{n_{\text M}} \, \left( \frac{1}{R_1} - \frac{1}{R_2} \right) $$ `