The primary purpose of polarized sunglasses
a.
to block ultraviolet rays.
b.
to block infrared rays.
c.
to block glare from reflections (for example off lakes or roads).
d.
to look cool.

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?