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Physics, 22.06.2019 03:30
The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared
Answers: 1
Physics, 22.06.2019 03:50
The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=0โ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=30โ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=45โ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=60โ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=90โ with the plane of polarization?
Answers: 1
Physics, 22.06.2019 05:40
An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
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