Light that is polarized along the vertical direction is incident on a sheet of polarizing material. Only 65% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. No light passes through the second sheet. What angle does the transmission axis of the second sheet make with the vertical?
2007-03-07 10:39:33 · 1 answers · asked by help! 1 in Science & Mathematics ➔ Physics
i think this is an application to Malus's law
since you know that there is no transmission out of the second sheet, then sheet one and sheet two are perpendicular to each other, so all you have to do is fine the angle on sheet 1
I = I0 (cos(phi))^2
you know after going through the first sheet, you get .65I0 so just solve for cos sq term and add 90 to get the trasmission axis of the second sheet
2007-03-07 12:40:02 · answer #1 · answered by John 5 · 1⤊ 0⤋