In Class Review for Exam 2

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In Class Review for Exam 2


Lecture number:
20
Pages:
2
Type:
Lecture Note
School:
The University of Vermont
Course:
Phys 012 - Elementary Physics
Edition:
1
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Unformatted text preview:

Lecture 20 Outline of Last Lecture I. Intensity a. Savg. = Pavg./Area b. E = cB c. Savg. = EmaxBmax)/2μ0 II. Electromagnetic Spectrum a. c = λf b. increasing f = decreasing λ = higher energy c. visible light falls between λ = 400nm and λ = 700nm III. Polarization a. electric field can point in any direction i. polarized light contains an electric field only oriented in one direction b. the intensity of initially unpolarized light is reduced by a factor of ½ when it passes through a polarizer c. Malus’ Law: I = I0cos2θ Physics 012 1st Edition



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