వెతుకులాట ఫలితాలు

.../index.php/History_of_Islamic_Physics_(Snell%27s_Law) discovery of the law of refraction] (from Rashed, 1990). ]] .../math> is kept equal to <math>n_1/n_2</math> then the rays satisfy the law of sines, or Snell's law. ...