If the Sun- Earth Separation Were 10 AU Instead of 1

question 139

Multiple Choice

If the Sun- Earth separation were 10 AU instead of 1 AU, what would the flux of sunlight (energy per second per square meter) be at the Earth, compared to what it is today?

• A)100 times more
• B)10 times less
• C)100 times less
• D)10 times more
• E)about 3.16 (or the square root of 10)times less

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