ow much brighter is blue sky at 350 nm than at 800 nm? Approximately 2x Approxim

Question

ow much brighter is blue sky at 350 nm than at 800 nm?

Approximately 2x

Approximately 25x

Approximately 0.04x

it's the same brightness!

The reason why light reflected off a surface often has significant horizontal polarization is that A. The atoms reflecting the light can only oscillate at specific frequencies B. The atoms reflecting the light can only wiggle parallel to the direction they're re-emitting the light, so they can't produce light having polarization vertical to the surface C. The atoms reflecting the light can only wiggle perpendicular to the direction they're re-emitting the light, so they can't produce light having polarization vertical to the surface D. None of the above

For light shining onto a surface at Brewster's angle, the angle between the light reflected off the surface and the light transmitted into the surface is

0?

180?

90?

depends on the index of refraction, n, of the medium

Approximately 2x

Approximately 25x

Approximately 0.04x

it's the same brightness!

Explanation / Answer

Part 1 . D wavelength has nothing to do with brightness

part 2 . C

part 3. D

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