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Question
How many times greater is the speed of infrared light (l = 800 nm) than the speed of violet light (l = 400 nm) in a vacuum?A) 2
B) 1/2
C) 400
D) 1; that is, both have the same speed.
Answer
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Related questions
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C) linear momentum.
D) angular momentum.
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B) on Earth and the Moon only.
C) throughout the universe.
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E) on Earth only.
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______________ principle explains why objects float or sink in a fluid.
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The magnitude of the acceleration of an object moving in a circle at constant speed is
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A) changing, but pointing in a predictable direction.
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