Chapter 10: Light - Reflection and Refraction

VIGYAN

Chapter 10: Light - Reflection and Refraction Class X Science Mind Map [DIAGRAM: Flowchart showing classification of Light phenomena into Reflection (Mirrors: Plane, Spherical) and Refraction (Lenses, Curved Surfaces)] Reflection of Light When light falls on an object it is sent back into the same medium. This is called reflection of light. Laws of Reflection The angle of incidence is equal to the angle of reflection. The incident ray, the reflected ray and the normal to the mirror at the point of incidence all lie in the same plane. Image Formation by a Plane Mirror The image is virtual (cannot be obtained on a screen) and erect . The image is the same size as the object. The image is at the same distance from the mirror as the object is in front of it. The image is laterally inverted . Spherical Mirrors It is a curved mirror which is a part of a hollow sphere. Spherical mirrors are of two types: concave and convex. Concave Mirror (Converging Mirror): Reflecting surface is curved inwards. Rays of lig…

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