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光的折射规律较复杂,包括折射定律(sini/sinr=常数)、折射率(n)概念、n=(c/v)、全反射、色散(同一介质对不同频率的光折射率不同)等.折射规律应用广泛,是多年来高考考试的热点.例1 如图1所示,一束光斜射入平行玻璃板的上表面,由玻璃板射出.时变成两束平行光 a和 b.我们可以判定 a 光和 b 光比较,____光光子的能量较大,____光通过玻璃板的时间较长
The refraction law of light is more complicated, including the law of refraction (sini/sinr = constant), the concept of refractive index (n), n = (c/v), total reflection, dispersion (different refractive index of the same medium for different frequencies), etc. The refraction rule is widely used and is the hot spot of the college entrance exam for many years. Example 1 As shown in Fig. 1, a beam of light is obliquely injected into the upper surface of a parallel glass plate, and is emitted by the glass plate. It becomes two parallel beams of light a and b. We can determine the difference between a light and b light, the energy of ____ light photons is larger, and the time of ____ light passing through the glass plate is longer.