Why is a polarized filter helpful to a photographer? It transmits all light. It scatters all light. It blocks all light. It blocks some light but not all.

Would you rather have polarized or non-polarized sunglasses? Why?  Write 50 words.

What angle would the axis of a polarizing filter need to make with the direction of polarized light of intensity 1.90 kW/m2 to reduce the intensity to 40.0 W/m2? =____°

A life-guard wants your help choosing a pair of new sun-glasses to minimize reflections from the water.  She noticed an advertisement that let one choose the angle of polarization orientation of the sunglasses. What polarization angle, if any would you advise her to choose for her new glasses.   Question 6 options:   A pair of polarizing sunglasses offers no advantage for a people near the water.   Sunglasses with a horizontally oriented polarizer would be best for reducing ocean glare.   Sunglasses with a vertically oriented polarizer would be best for reducing ocean glare.

What is the condition for permanent polarization? What kind of materials satisfy this condition?

Many modern sunglasses are advertised as being polarized. Manufacturers make lenses that are polarized vertically, so as to block off horizontally polarized light coming from reflections from the ground and other flat surfaces, thus reducing glare. If you bought a new pair of polarized sunglasses (and perhaps didn’t care about disassembling it into pieces), how could you verify that the lenses are indeed polarized?

** 46. How much unpolarized light gets through a polarizer? Unpolarized light is as likely to have its polarization vector in one direction as another. Therefore, on average, the up-down component of the polarization vector for unpolarized light will be the same as the right- left component. These equal components in two perpendicular directions are in the same relationship as the E-field components when polarized light hits a polarizer with its polariza- tion vector at 45° to the optic axis. We can use this connection to find out what fraction of the energy in an incident unpolarized beam makes it through the polarizer as polarized light. a) If an electric field vector of a polarized light beam is 45° to the optic axis of the polar- izer, find the ratio between the magnitude of the electric field vector that passes through the polarizer and the magnitude of an incident polarized electric field vector. This will be the same as the ratio of the magnitude of the electric field of the…