If the polarizing angle (the angle at which reflected light is completely plane polarized) of a flat piece of sapphire is 60.5°, what is its index of refraction?
a. 1.97
b. 1.77
c. 1.59
d. 2.36
e. 1.82
b
Physics & Space Science
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Granulation is caused by
a. sunspots. b. rising and sinking gases below the photosphere. c. shock waves in the corona. d. the solar wind flowing away from the corona. e. heating in the chromosphere.
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A 5,000 kg satellite is orbiting the Earth in a geostationary orbit. The height of the satellite above the surface of the Earth is 
A. 
B. 
C. 
D. 
E. 
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Building new telescopes: With current telescopes, we can see galaxies as they existed 1 billion years after the Big Bang. Discuss innovations that could be made with new telescopes in order to see even further
What will be an ideal response?
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