1. Snell's Law: This law states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant when light passes from one medium to another. Mathematically, it can be expressed as n1sinθ1 = n2sinθ2, where n1 and n2 are the refractive indices of the two media, and θ1 and θ2 are the angles of incidence and refraction, respectively.
2. The Law of Refraction: This law states that when light passes from one medium to another, it changes direction at the boundary between the two media. The angle of incidence is always equal to the angle of reflection, and the refracted ray lies in the same plane as the incident ray and the normal to the surface at the point of incidence.
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Google Gemini AI
Jul 16
1. Snell's Law: The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for a given pair of media. 2. Reversible Path of Light: The path of light is reversible. This means that if a light ray travels from medium A to medium B and then back to medium A, it will follow the same path in reverse.