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Question:

A girl every time I see a boy will look in the mirror, why is this?

Look inside the fish tank. The The side glass is always the same as the mirror. The The why? More

Answer:

called the refraction light, the other part of the light back to the media called the reflected light However, when the refractive index of the medium 1 is greater than the refractive index of the medium and both the light is emitted from the optical density medium toward the optical sparse medium, the refraction angle is larger than the incident angle Therefore, when the incident angle is increased, the refraction angle also increases, The angle increases first to 90 degrees, this time (the angle of incidence is called the critical angle) refraction light disappears, leaving only reflected light, known as the total reflection phenomenon Optical fiber communication is the use of the principle of total reflection, fiber in the structure of the center and the skin of two different media, light transmission from the center when encountered fiber bending, the occurrence of total reflection, and ensure that the light will not leak to the fiber
This glass can be reflected most of the light reflected back
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