UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 27, Problem 31Q

(a)

To determine

The minimum diameter needed for the objective of a Martian telescope, in order to resolve the patterns of size 1000 km drawn on Earth to signal the Martian inhabitants, by assuming the wavelength to be 550 nm and a minimum separation between Earth and Mars.

(b)

To determine

The type of patterns that must be chosen to signal Martian inhabitants, such that they could discern the presence of an advanced civilization on Earth. The patterns should not be mistaken as natural formations.

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