Reflection mirrors
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Light rays follow the law of reflection when striking a surface, where the angle of incidence equals the angle of reflection. When light reflects off a smooth, even surface like a mirror (normal reflection), an image can be seen due to the light rays reflecting directly into the eye. In contrast, rough or uneven surfaces cause diffuse reflection, scattering the light rays in many directions so no clear image is formed.
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This document provides an overview of light reflection and spherical mirrors. It begins with definitions of key concepts like reflection, convex mirrors, concave mirrors, and plane mirrors. Examples are given to illustrate the properties of each type of mirror. The key parts of spherical mirrors like the principal axis, focal point, and radius of curvature are summarized. Methods for predicting images using ray diagrams are described. The differences between images formed by concave and convex mirrors are explained. Finally, the mirror equation for calculating image properties is introduced along with sign conventions.
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Light is a form of energy that enables vision. Light travels in straight lines, and its direction can be changed via reflection or refraction. Reflection is the change in direction of light when it bounces off a surface like a mirror. The law of reflection states that the angle of incidence equals the angle of reflection. Reflection forms real or virtual images depending on whether light rays converge or appear to diverge. Spherical mirrors like concave and convex mirrors can form real or virtual images of different sizes and orientations. Lenses also refract light to form real or virtual images. Prisms disperse white light into visible colors via refraction.
Lens and Mirrors [Autosaved] for Grade 10.pptx
This document discusses the anatomy and properties of lenses and mirrors. It defines key terms like focal point, principal axis, radius of curvature, and types of lenses and mirrors. Ray diagrams are demonstrated as a technique for determining the characteristics of images formed by concave and convex mirrors and converging and diverging lenses based on the position of objects. Reflection and refraction principles are reviewed for understanding image formation.
presentation phys.pptx
Reflection and Refraction of light presentation free.
In this presentation I've explained these phenomenon in very detailed and very informative presentation.
Physics_Portfolio_Tanmay_8-A (3).pptx
This document discusses the laws of reflection. It defines reflection as when light rays change direction after striking an object. Mirrors are defined by the law of reflection, which states that the incident, reflected, and normal rays all lie in the same plane and the angle of incidence equals the angle of reflection. There are three types of mirrors: plane, convex, and concave. The document then explains the properties and behaviors of light for each mirror type. It concludes by defining the key terms related to the laws of reflection, such as incident ray, reflected ray, normal ray, angle of incidence, and angle of reflection.
Reflection of light
This document discusses the phenomenon of reflection of light. It defines regular and irregular reflection and explains that when light travels from one medium to another, some of it reflects at the surface. The key points made are:
1) Reflection occurs when light strikes an opaque surface and bounces back in the same medium.
2) Regular reflection follows the laws where the angle of incidence equals the angle of reflection, and the incident, reflected, and normal rays all lie in the same plane.
3) Terms like incident ray, reflected ray, point of incidence, and normal ray are defined in relation to the angle of reflection.
Manmohan optics
This presentation discusses optics and key optical concepts. It covers reflection, including the two types of reflection, and the laws of reflection. It also discusses refraction, image formation using plane and spherical mirrors, and linear magnification. Reflection and refraction are explained with diagrams to illustrate how light rays behave at interfaces. The document provides a concise overview of fundamental optics topics.
schence conference.pptx
This document discusses the concepts of light reflection. It defines reflection as light bouncing back when striking a surface. There are two types of reflection: regular and irregular. Regular reflection occurs on smooth surfaces, keeping parallel rays parallel after reflection. Irregular reflection on rough surfaces scatters rays in different directions. The document also discusses laws of reflection, types of images (real and virtual), characteristics of images formed by plane and spherical mirrors, and key terms like focal length, radius of curvature, and principle axis.
LIGHT.pdf
The document provides definitions and explanations of key concepts in optics such as:
- Rectilinear propagation of light and how we see objects
- Properties of transparent, translucent, and opaque objects
- Laws of reflection and types of mirror reflections
- Properties of spherical mirrors including concave and convex mirrors
- Ray diagrams and rules for drawing them
- Formation of images by concave and convex mirrors and lenses
- Uses of concave lenses and convex lenses
Reflection And Refraction
The document discusses several optical phenomena including reflection, refraction, diffraction, and polarization of light. It describes the properties of images such as whether they are real or virtual, upright or inverted, and larger, smaller, or the same size as the object. It also discusses the characteristics and applications of plane mirrors, concave mirrors, convex mirrors, refraction through different media, total internal reflection, optical fibers, mirages, prisms, rainbows, and why the sky appears blue and sunsets appear red.
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Presentation.pdf refleection, refraction and diffraction of light
Presentation.pdf refleection, refraction and diffraction of light
Understand how to generate Light and their reflection
Understand how to generate Light and their reflection
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Reflection mirrors
- 1. Light: Reflection and Mirrors 7SCIENCE
- 2. How do reflections relate to light? How are light and reflection related? In mirrors, the image seen is reflected from the surface and into your eye Law of reflection When a light ray strikes a surface and is reflected it follows the law of reflection: The angle of incidence is equal to the angle of reflection True FOR ANY surface, no matter what material it is made of
- 4. When a light ray strikes the surface, the line perpendicular (90°) to the surface is called the normal
- 5. The incoming light ray and the normal make up the angle of incidence
- 6. The reflected light ray forms an angle called the angle of reflectionNORMAL Incoming light
- 7. Reflection from surfaces Why can you see your reflection in some surfaces such as mirrors and not in others (ex. paper)? Related to the smoothness of the surface Even if something looks smooth, its surface may be uneven or rough and cause light rays to be reflected in many directions This is called diffuse reflection Mirror reflectionsare called normal reflections