The planet Neptune is 4.5 x 10 12 m from the earth. Its diameter is 4.9
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The planet Neptune is 4.5 x 1012 m from the earth. Its diameter is 4.9 × 107 m. What diameter telescope objective would be necessary to just barely see Neptune as a disk rather than as a point of light? Assume a wavelength of 550 nm.
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Related Book For
College Physics A Strategic Approach
ISBN: 9780321595492
2nd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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