![]() ![]() The direction is defined by the plane of the mirror, with the virtual source being the reflection of the real source over the plane of the mirror. The waves produced by this virtual source continue in the same direction they would be going if there was actually a source on the other side of the mirror, which is the angle of reflection. However, the amount of which light is refracted depends on the index of refraction for each. This is why when you look at in a mirror, it looks like you are in the mirror, because it is as if the image of you is a new source that is reflected over the mirror surface (a "virtual" image). The law of reflection states that the angle of incidence is the same as the angle of reflection. The waves do constructively interfere in the air so that its like the source of the wave is reflected over the metal surface (the source looks like it is "inside" the metal). Hence, the angle of incidence and reflection are always the same, and they are in the same plane as normal. The law of reflection states that the angle of incidence is equal. The rule of reflection states that the angle of incidence equals the reflected angle. This is how we can determine the reflection of a light off a surface in a very predictable way. There are two big things here, first -The angle of incidence is always equal to angle of reflection. The ray labeled R is the reflected ray (the angle of reflection). In the case of a metal, these waves destructively interfere inside the metal and so very little of the wave penetrates into the metal. there is no refracted ray, or in other words the light ray is totally reflected. The angle of the instance ray to the normal line is the Angle of Incidence. The law of reflection states that when a ray of light. In respect to this, is angle of incidence equal to angle of reflection The normal line divides the angle between the incident ray and the reflected ray into two equal angles. Whenever a light wave is incident on a metal or an insulator like water or glass, each point on the surface radiates a wave that is either 180 degrees out of phase (for a metal or from a low refractive to a high refractive index) or in phase (from a high refractive index to a low index, like from inside glass to air). Diffused reflection occurs when the surface is rough, also the angle of incidence chages from one ray to another. Ie the quickest path for the photon to travel between these two points is with the same incident and reflected angle, and according to Fermat's principle, that's what they will always do. So if calculate the derivative you will find that the answer looks exactly like incident path: (length of opposite side)/ hypotenuse = reflected path (opposite/hypotenuse) If you can find where t is minimal by when the derivative is zero. If surface has a length of 1 and the location where the photon gets reflected is X, A is at height h1, B at height h2, then the time it takes it to go from A to B is, 2- Incident ray, Reflected ray and the normal at the point of incidence lie in the same plane. If you start at point A, sometime during the journey reflect of a surface to bounce back to reach point B, then the angle of incident, reflection are completely unknown because you don't know at what point it hits the surface and gets reflected. 1-The angle of incidence equals the angle of reflection. The law of reflection is quite simple, as it states that the angle of reflection is equal. I remember having to derive this in waves and optics, it's pretty easy to reach the conclusion that the angles mist be the same just with Fermat's principle, which states "the path taken by a ray between two given points is the path that can be traversed in the least time." The magnitudes of angle of incidence as well as angle of reflection equals zero when the incident ray strikes the reflecting surface normally. The angle of reflection is the measurement of the angle from the reflected light beam to the normal line.
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