6C Practice Midterm 1

# 6C Practice Midterm 1 - p6c-pm1.nb 1 Physics 6C Midterm 1...

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Physics 6C Midterm 1 Practice Chapters 24, 25, 26 Reminder: Friday, 24 Oct 2008 12:00-12:50 pm Midterm 1 ü 1. You and your geeky friend decide to perform some experiments to investigate the properties of lightning. a) First, you want to see whether the light from lighting is polarized. When a lightning bolt strikes, your friend a distance d1 away determines that the peak power incident on his photovoltaic cell of area A is P watts. You are a distance d2 away from the bolt with your polarizer aligned vertically. What are the magnitudes and directions of the E and B fields just after the light passes through the first polarizer assuming that the light is NOT polarized? (Assume that the light propagates uniformly radially outward from a perfectly vertical bolt. Note that for light the magnitudes of E and B are related: E=cB.) d1 d2 photo cell lighting p6c-pm1.nb 1

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ü b) A third friend (far geekier than the first two) tries to perform spectroscopy on the lighting light. A beam of the lighting light hits a small prism (dimesions small
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## This note was uploaded on 10/21/2008 for the course PHYS 6C taught by Professor Staff during the Fall '01 term at UCLA.

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6C Practice Midterm 1 - p6c-pm1.nb 1 Physics 6C Midterm 1...

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