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| 1 . |
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Which one of the following is NOT a basic property of light?
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| 2 . |
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The speed of light in water is __________.
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| 3 . |
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A narrow whitish ring centered on the Sun, called a halo, is most frequently observed in __________ regions.
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| 4 . |
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A mirage is caused by __________.
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| 5 . |
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Rainbows have a curved shape because __________.
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| 6 . |
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The bending of light as it passes obliquely from one transparent medium to another is called __________.
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| 7 . |
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Looming is considered a __________ mirage because the image is seen __________ its true position.
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| 8 . |
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__________ consist of two bright regions, or "mock Suns," associated with a halo.
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| 9 . |
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Which one of the following atmospheric properties is the most important in forming a mirage?
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| 10 . |
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In order to see a rainbow, the observer must have the Sun __________.
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| 11 . |
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The separation of the colors of light by refraction is called __________.
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| 12 . |
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The primary optical phenomena responsible for producing a rainbow are __________.
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| 13 . |
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The only optical phenomenon more commonly witnessed in association with the Moon than with the Sun is the __________.
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Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
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