Concave mirror
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Light is a form of energy that travels at the maximum speed and in straight lines. It undergoes various phenomena like reflection, refraction, scattering, and interference. A concave mirror is a spherical mirror with a reflective convex surface that forms real, inverted images. The location and size of the image formed by a concave mirror depends on where the object is placed relative to the focal point and center of curvature of the mirror. Common uses of concave mirrors include vehicle headlights, dentistry/ENT tools, shaving mirrors, and telescopes.
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2) Reflection of light follows the laws - the angle of incidence equals the angle of reflection, and the incident ray, normal and reflected ray lie in the same plane. Reflection can be regular from smooth surfaces or diffuse from rough surfaces.
3) Spherical mirrors are either concave or convex. Concave mirrors converge parallel rays to a focal point, while convex mirrors diverge them from a focal point behind the mirror. Images formed depend on the position of the object.
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Light is a form of energy that allows us to see objects. When light reflects off objects and enters our eyes, we see the objects. There are two main types of reflection: irregular/diffused reflection which scatters light in all directions for general illumination, and regular/specular reflection which forms images using smooth, shiny surfaces like mirrors. Spherical mirrors can be either concave which converge light to a focal point, or convex which diverge light appearing to come from a point behind the mirror. The mirror formula relates the object and image distances to the focal length. Concave mirrors are used in flashlights and car headlights while convex mirrors are used as rear view mirrors in vehicles.
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This document discusses the reflection of light in mirrors and the formation of images. It defines key terms like plane mirror, curved mirror, incident ray, reflected ray, normal line, angle of incidence, and angle of reflection. It explains that the angle of incidence equals the angle of reflection. It also describes the images formed by concave and convex mirrors, including their location, orientation, size, and whether they are real or virtual. The document provides examples of ray diagrams to illustrate image formation using mirrors.
Qualitative description of image formed in mirror and lens.pptx
This document discusses the reflection of light in mirrors and the formation of images. It defines key terms related to reflection such as incident ray, reflected ray, normal line, and angle of incidence and reflection. It describes the two types of mirrors - plane and curved - and explains that plane mirrors form virtual images that are the same size and behind the mirror. Curved mirrors can form real or virtual images, depending on if the object is between the focus and center of curvature or beyond the focus. The document also discusses image characteristics such as location, orientation, size and type.
Light
1. Light is an electromagnetic wave that consists of oscillating electric and magnetic fields perpendicular to each other and the direction of propagation.
2. Light can be reflected, refracted, interfered with, diffracted, and polarized as it interacts with surfaces and materials.
3. When light hits an opaque surface, none of the light passes through. When it hits a transparent surface, some of the light passes through, and when it hits a clear surface, almost all of the light passes through.
MIRRORS.pptx
There are two types of mirrors: plane and curved. Plane mirrors form virtual, upright images of equal size to the object. Curved mirrors can be concave or convex. Concave mirrors converge parallel rays to a focal point, forming real or virtual images that can be upright or inverted and enlarged or reduced. Convex mirrors diverge rays and always form smaller, upright, virtual images. Refraction is the bending of light when passing from one medium to another, causing image formation in lenses and the eyes.
fdocuments.net_optics-lecture-2-book-chapter-3435.ppt
An image is a reproduction of an object via light that can either be real, forming on a surface, or virtual, requiring an observer. Real images are produced by concave mirrors and converging lenses, whereas virtual images are produced by flat mirrors. A real image occurs where rays converge and a virtual image where rays appear to converge. Concave mirrors form real images when the object is outside the focal point and virtual images when inside the focal point. Lenses also form real or virtual images depending on if the object is outside or inside the focal point. Diffraction occurs when light encounters an obstacle comparable in size to its wavelength, spreading the waves and creating interference patterns like Newton's rings.
Light grade 10 notes
This document provides information about light reflection and refraction. It defines key concepts such as the ray and beam of light. It describes the laws of reflection, including that the angle of incidence equals the angle of reflection. Plane mirrors form virtual, erect, and laterally inverted images. Spherical mirrors can be concave or convex and form real or virtual images depending on the position of the object. The document also covers the laws of refraction, including Snell's law, and discusses image formation using lenses. Convex lenses form real, inverted images while concave lenses form virtual, erect images. Lens formula and magnification are also defined.
Light - 8th standard Science Notes .pptx
Light comes from sources like the sun and enables us to see visible light. Our eyes perceive light when it bounces off objects after hitting them. Light bounces, or reflects, off surfaces at the same angle that it hits under the laws of reflection. The angle of incidence is equal to the angle of reflection, and both lie in the same plane as the normal line perpendicular to the surface. Reflection can be regular or diffuse depending on the smoothness of the surface. Plane mirrors form virtual images that are upright and equidistant from the mirror, undergoing lateral inversion. Multiple mirrors produce multiple reflections and infinite images between parallel mirrors.
Mirror and lens notes
Mirrors and lenses interact with light in predictable ways. Plane mirrors reflect light at an equal angle, forming a virtual upright image. Concave mirrors either form a real upside-down image behind the focal point or a virtual upright image in front. Convex mirrors always form a virtual smaller image. Refraction bends light when it passes through different materials, with more bending at higher indexes of refraction. Concave lenses diverge light rays, while convex lenses converge light to a focal point, forming either real or virtual images.
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.
lightclass10_learnwithmadhu_231111_020833.pdf
- Light is a form of energy that allows for vision. It can come from natural or man-made sources.
- Light travels in straight lines or rays. When light rays reflect off a surface, they follow the laws of reflection where the angle of incidence equals the angle of reflection.
- Spherical mirrors come in two types - convex and concave. Convex mirrors diverge light rays and form virtual images while concave mirrors converge light rays and can form real or virtual images depending on the position of the object.
Optics mirrors & lenses
Optics is the study of light and its interactions with objects like mirrors, lenses, and substances that reflect, scatter, or transmit light. When light strikes an object, it can be reflected, transmitted, scattered, or absorbed. There are three main types of mirrors - plane, concave, and convex - and reflection follows the rule that the angle of incidence equals the angle of reflection. Refraction occurs when light changes speed as it passes from one medium to another, causing it to bend. Lenses use refraction to form real or virtual images depending on the position of objects in relation to the focal point.
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Concave mirror
- 2. LIGHT. Light is a form of energy which is emitted by a luminous body and when incident on the eye causes the sensation of light.
- 3. CHARACTERISTICS OF LIGHT RAYS Light is a form of energy which always travels with maximum velocity. Light travels in straight. When light rays fall on smooth reflecting surfaces, angle of incidence is equal to angle of reflection . Light undergoes the phenomenon of reflection, refraction, total internal reflection, interference, dispersion, diffraction and polarization. Light undergoes the phenomenon of scattering,discovered by C.V.Raman.
- 4. CONCAVE MIRROR If the convex surface of a spherical mirror is silvered then the concave surface acts as a reflecting surface and it is called concave mirror.
- 5. 1.WHEN THE OBJECT IS AT INFINITY. pFC Real, inverted and point sized image is formed at ‘ F ‘. NATURE OF IMAGES FORMED BY CONCAVE MIRROR
- 6. 2.Object placed beyond ‘c’ PFCA B A1 B1 Real, inverted and small sized image is formed in between F and C.
- 7. 3.Object placed at ‘c’ B PFC G O Real, inverted and same sized image is formed at ‘C’.
- 8. 4.Object placed between ‘F’ and ‘C’ PFCI G O J Real, inverted and big sized image is formed beyond ‘ C ‘
- 9. 5.Object placed at ‘F’ F PC J O Real, inverted and large sized image is formed at infinity.
- 10. 6.Object placed in between ‘P’ and ‘F’ C F PO J I G Virtual, erect and magnified image is formed behind the mirror.
- 11. USES OF CONCAVE MIRROR Concave mirror is used as a reflector in head lights of vehicles. Dentists & ENT specialists use concave mirrors to see small inner parts of throat , nose etc. It is used as shaving mirror. Concave mirrors are used in telescopes
- 12. BIBLOGRAPHY MODERN ABC OF PHYSICS BY SATISH K GUPTA COMPREHENSIVE PHYSICS BY LAXMI PUBLICATIONS PREPARED BY:- K.G.MALLIKARJUN VICE PRINCIPAL JNV, ANANTHAPUR