For a beam of light, the direction of polarization is defined as
A)
the beam's direction of travel.
B)
the direction of the electric field's vibration.
C)
the direction of the magnetic field's vibration.
D)
the direction that is mutually perpendicular to the electric and magnetic field vectors.
Question 2
What principle is responsible for the fact that certain sunglasses can reduce glare from reflected surfaces?
A)
refraction
B)
reflection
C)
polarization
D)
diffraction
E)
total internal reflection
Absorption of light energy by an electron
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