Polaroid Definition and 12 Threads

Homework Statement It is just a conceptual doubt Homework Equations According to malus law intensity of light through polaroid is I=(Io)cos^2(theta) where theta is the angle between axis of polaroid and incident light. The Attempt at a Solution But when Theta=0 then I=Io but in my book it is...

We were given an assignment on Polaroids and I couldn't find the uses of H sheet Polaroid and K sheet Polaroid. I would really appreciate the help. Thanks!

Homework Statement You use a sequence of ideal polarising filters, each with its axis making the same angle with the axis of the previous filter, to rotate the plane of polarisation of a polarised light beam by a total of 45°. You wish to have an intensity reduction no larger than 10%. What...

Homework Statement Two pieces of polaroid are arranged so they are initially parallel . One of the polaroid is rotated until the intensity of the light beam from the two polaroid is 1/3 of its initial intensity . Calculate the angle turned thru the polaroid Homework Equations The...

:(:(:( Please ease my aching soul by helping me with this... I submitted this assignment online and I don't know the answers yet or however many I got wrong. I chose 45 because I know unpolarized light becomes this after going through a polarizer: That single line is 180º, so I did...

Unpolarised light passes through two Polaroid sheets. The axis of the rst is horizontal, and that of the second is 50 above the? Do i have this right. I am using law of malus I=I0 cos2θ Im getting 47% but i don't know if that's right. If someone could help that would be awesome thanks.

When I am studying photon physics, one question come to my mind about mixed states. Let a photon be in the state |h> = (a;b) where (a;b) is a column vector with complex entries. How can we calculate the probability of its passing through an x-polaroid? My approach: p(h->x) = |<h|x>||<h|x>|* =...

Homework Statement I was stuck on a question today in my Optics exam (I didn't have time to think well about it but I'm still stuck). The problem was more or less like this: There's an incident linearly polarized light in the direction of \hat x; we want to polarize it so that we get \hat E =...

Homework Statement Unpolarized light of intensity I0 passes through two pieces of Polaroid sheet. The second piece is rotated so that the intensity of the transmitted light goes to zero. A third piece of Polaroid is inserted between the two pieces. Calculate the intensity as a function of...

Fans bid farewell to Polaroid film I've never owned a Polaroid camera myself, but I've used them in introductory physics labs. When I was a grad student, and in my first teaching job, we used them with a strobe lamp to photograph two-dimensional trajectories for projectile motion. Students...

1. *A beam of light that is a mixture of plane polarized and unpolarized light is incident on a sheet of polaroid. The trasmitted intensity varies as the sheet is rotated, having a maximum when the transmission axis is horizontal, and a minimum when it's vertical. If the maximum intensity is...

Homework Statement A light source is viewed through 2 polaroid filters, A and B (B is infront of A) a) describe carefully what is seen when polaroid B is rotated slowly in its own plane through 180 degrees. b) describe how you would use one of the polaroid filters to determine whether...