Ray lies in the plane formed by the normal and the

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ray lies in the plane formed by the normal and the incident ray (in other words, all three line up): The law of ______________ deals with the deflection of light when it passes from one kind of transparent medium into another. Detailed Explanation: Refraction. Every transparent substance can be characterized by its index of refraction, a measure of the degree to which the speed of light is diminished in passing through it. Whenever light passes from a medium having one index of refraction into a medium having another index, it is always bent or refracted at the interface between the two media. The image below illustrates the refraction of light as it passes from air through glass and then back to air. _____________ of light is the manner in which white light, which is a mixture of all wavelengths of visible light, can be decomposed into its constituent wavelengths or colors when it passes from one medium into another. The beam of light is spread out or dispersed. Explanation: Dispersion. The phenomenon of dispersion occurs because the index of refraction of a transparent medium varies slightly for light of different wavelengths. Whenever light is refracted in passing from one medium into another, the violet and blue light of shorter wavelengths is always bent more than the orange and red light of longer wavelengths. Nature provides an excellent example of the dispersion of light in the production of a rainbow.
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The _________ is the Earth's nearest celestial neighbor and its only known natural satellite which accompanies the Earth in its annual revolution about the sun. Explanation: Moon. Although the moon shines only by reflected sunlight, it is nevertheless the second most brilliant object in the sky. The approximate _____________ from the center of the moon to the center of the Earth is 238,857 miles. Explanation: Distance. The surface of the moon is covered with ___________ of varying shapes and sizes. Explanation: Craters. Some of these craters were named "seas" during early observations as they were assumed to be large bodies of water. However, the lunar "seas" are craters of different sizes, shapes, and textures. _____________ occur whenever any part of either the Earth or the moon enters the shadow of the other. Explanation: Eclipses. When the moon's shadow strikes the Earth, people on Earth within that shadow see the sun covered by the moon, or a solar eclipse. When the moon passes into the shadow of the Earth, people on the night side of the Earth see the moon darken, or a lunar eclipse.
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The _________ ___________ consists of the sun and a large number of smaller objects gravitationally associated with it. led Explanation: Solar system. Almost 99.9 percent of the matter in the system is the sun itself. The smaller objects that comprise the remainder of the solar system include planets, their satellites, the comets, the minor planets or asteroids, the meteoroids, and an interplanetary medium of very sparse gas and microscopic solid particles. Object
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ray lies in the plane formed by the normal and the incident...

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