![]() Ratio of the image height to the object height. When lenses do not form perfect images E. ![]() When light passes from one material to another C. The angle of incidence equals the angle reflection B. According to the law of reflection, the angle of incidence equals the angle of reflection. Note – The laws of reflection are the fundamental principle behind the solution to this question, it states that when a ray of light reflects a smooth surface, the angle of incidence is always equal to the angle of reflection, and another law behind this rule is that at the point of incidence, the incident ray, the reflected ray and the normal ray all lie in the same plane. Aberrations Refraction Law of Reflection Total internal reflection Magnification A. The angle of incidence is the angle between this normal and the incident ray the angle of reflection is the angle between this normal and the reflected ray. The second part of the law of reflection states, The incident ray, the normal to the surface and. When the angle of incidence is equal to the critical angle Figure 5.15: When the angle of incidence is equal to the critical angle, the angle of refraction is equal to 90°. So angle of incidence is equal to angle of reflection this is true under special conditions. the angle of incidence equals the angle of reflection. In the reflection of light, the angle of incidence is equal to the angle of reflection, measured from the normal (the line perpendicular to the point of impact). (As the figure shows, the reflected rays obey the law of reflection so that the angle of reflection is equal to the angle of incidence in all three cases. As we know according to the law of reflection angle of incidence is equal to angle of reflection this is true if and only if, if the surface on which light strikes is smooth. Youre welcome to use and share this image and text for non-commercial purposes with attribution. Derive the law of reflection namely, that the angle of incidence equals the angle of reflection from a flat surface using Huygens’ principle for waves. If the incident angle is greater than the critical angle, as shown in (c), then all of the light is reflected back into medium 1, a condition called total internal reflection.
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