A radio telescope 200 m in diameter is used to investigate sources emitting a 21-cm wavelength wave. What is the minimum angular separation of the sources that can be resolved by this system?
A) 0.073°
B) 0.030°
C) 0.0013°
D) 0.154°
E) 0.0026°
A
Physics & Space Science
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Fill in the blank(s) with the appropriate word(s).
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What will be an ideal response?
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A spaceship, moving away from the Earth at a speed of 0.9c, fires a light beam backward. An observer on Earth would see the light arriving at a speed of
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Indicate whether the statement is true or false
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