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Science-Related Homework Help Physics Topic started by: linn.tuell on Apr 12, 2014



Title: Can someone answer these on Electromagnetic Waves
Post by: linn.tuell on Apr 12, 2014
1. An electric magnetic wave is propagating towards the west. At a certain moment the direction of the magnetic field vector associated with this wave points vertically up. What is the direction of the electric field vector?
A. horizontal and pointing north
B. vertical and pointing up
C. vertical and pointing down
D. horizontal and pointing south
E. horizontal and pointing east

2. Is this true or false: the transmitted intensity of an unpolarized bean  of light passing through a polarizer is one half of the value of the original intensity.


Title: Re: Can someone answer these on Electromagnetic Waves
Post by: padre on Apr 12, 2014
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Title: Re: Can someone answer these on Electromagnetic Waves
Post by: padre on Apr 12, 2014
2. Is this true or false: the transmitted intensity of an unpolarized bean  of light passing through a polarizer is one half of the value of the original intensity.

True The transmitted intensity of an unpolarized beam of light passing through a polarizer is one half of the value of the original intensity.