The Photographer's Polaroid Trick · AI Generator #GEN-EFA3C921
Physics · optics
Problem
A landscape photographer notices that reflections from a calm lake surface can be nearly eliminated using a polarizing filter. When unpolarized sunlight reflects off the water surface at a particular angle, the reflected light becomes completely polarized. The photographer rotates her polarizing filter and finds that at one orientation, the reflected glare disappears entirely, while at 90° rotation from this position, the reflected light passes through with maximum intensity.
If the refractive index of water is n=1.33, at what angle θ (measured from the normal to the water surface) should the photographer position herself relative to the water to achieve this effect?