Author Question: Scattered light in the atmosphere is often partially polarized. The best way to determine whether or ... (Read 86 times)

SAVANNAHHOOPER23 · **on:** Jul 28, 2018

Scattered light in the atmosphere is often partially polarized. The best way to determine whether or not light from a particular direction in the sky shows polarization is to
a. diffract the light through a single slit.
b. squint while looking in that direction.
c. rotate a piece of polaroid film about an axis parallel to the ray while looking through it in that sky direction.
d. rotate a piece of polaroid film about an axis perpendicular to the ray while looking through it in that sky direction.
e. reflect the rays from that direction on a shiny metal surface.

Question 2

Polarized light is to have its polarization plane rotated by 90. In which of the following cases does the final beam have the greatest intensity?
a. 3 polarizing filters, each rotate beam by 30.
b. 2 polarizing filters, both rotate beam by 45.
c. 1 polarizing filter, rotating beam by 90.
d. None of the above, polarized light can't be rotated.