Author Question: What, approximately, are the dimensions of the smallest object on Earth that the astronauts can ... (Read 45 times)

cherise1989 · **on:** Aug 10, 2020

Question 1

Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?

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0%

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12.5%

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25.0%

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50.0%

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33.3%

Question 2

What, approximately, are the dimensions of the smallest object on Earth that the astronauts can resolve by eye at 200 km height from the space shuttle? Assume λ = 500 nm light and a pupil diameter D = 0.50 cm. Assume eye fluid has an average n = 1.33.

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150 m

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100 m

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250 m

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25 m

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18 m

ms_sulzle · **Reply #1 on:** Aug 10, 2020

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