Ans.A. A spherical mirror is called a concave mirror if the center of the mirror is further from the viewer than the edges are. Pole is the lowest point of the reflecting surface in the case of a concave mirror, while it is the highest point in a convex mirror. The light that is travelling and incident on the surface is known as the Incident Ray and the perpendicul… Autoplay is paused. In figure (1), P is the pole of the mirror.It is the midpoint of the spherical mirror. Spherical Mirrors Important terms - YouTube. The most commonly occurring examples of concave mirrors are shaving mirrors and makeup mirrors. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Formation of Image by Plane and Spherical Mirrors, Terms related to spherical Mirrors and Ray Diagram, Sign Convention || Refraction of light, laws of Refraction, Refractive Index, Refractive Index and Speed of light, Physics, class 10 || Spherical Mirrors. View Terms Related to Spherical Mirrors.docx from AA 1Terms Related to Spherical Mirrors “Mirror, mirror on the wall, who’s the fairest of them all?” We’ve all heard this dialogue from Concave mirrors; Convex mirrors; Concave mirror: The mirror whose inner part of the surface makes reflection of light is called concave mirrors. Some terms related to spherical mirrors: o The centre of curvature (C) of a spherical mirror is the centre of the hollow sphere of glass, of which the spherical mirror is a part. 3. (5) Aperture. But what kind of mirror was it? The image is virtual and erect. Spherical Mirror : Spherical mirror is nothing but the mirror which is looked like a part of sphere. The centre of a sphere of which the reflecting surface of a spherical mirror is a part is called ……………….. a. Pole c. The radius of Curvature d. Properties of image formed by a plane mirror & Some important terms related to spherical mirror. The effective diameter of the circular outline of a spherical lens is called its aperture. There are two types of spherical mirrors: concave, and convex. Terms related to spherical mirrors - definition Centre of curvature (C) : Centre of the sphere of which the mirror is a part. Online video lecture on Grade 8 SCIENCE LIGHT - TERMS RELATED TO SPHERICAL MIRROR. The spherical mirrors are of two shapes. (b) Radius of curvature: Radius of curvature of a spherical mirror is the radius of the hollow sphere of glass of which the mirror is a part. Well, let us find answers to it in this section. The various terms associated with spherical mirrors are: 1) Center of curvature:- The centre of curvature of a spherical mirror is the central point of the hallow sphere of which the mirror is a part. 68. The centre of curvature of a spherical mirror is the centre of the imaginary hollow sphere of... RADIUS OF CURVATURE (R). Normal in a spherical is a line joining the centre of curvature and a point on mirror. The distance between two extreme points on the periphery is called linear aperture. The angle subtended by periphery at centre of curvature is called angular aperture. Total distance between focus and pole is called focal length. It is denoted by f. The lectures follow the curriculum set by the Nepal Education Board. Terms Related to Spherical Mirror : 1 1 ) Center of Curvature ( C ) : Concave Mirror Convex Mirror. A spherical mirror is looked like a part of a sphere. The center of that sphere is ... 2 2 ) Principal Axis : 3 3 ) Pole : 4 4 ) Focus : 5 5 ) Radius of curvature : More items How many types of spherical mirrors? Curved mirrors come in two basic types: those that converge parallel incident rays of light and those that diverge parallel incident rays of light. A spherical mirror with an object point at its center of curvature is a perfect optical system having no aberrations of any kind. Some Important Terms Related to Spherical Mirrors CENTRE OF CURVATURE (C). One of the easiest shapes to analyze is the spherical mirror. This mirror also has two types. Spherical Mirrors Important terms. (Hint Spherical mirrors are of two … Spherical mirrors are mirrors whose surfaces form a part of a hollow sphere, The spheres can be made of glass or any polished metal surfaces Types of spherical mirrors : 1 , Convex Mirror 2, Concave Mirror. Some Terms Related To Spherical Mirror. The principal axis of a spherical mirror is the straight line passing through the centre of curvature C and pole P of the spherical mirror, produced on both sides. a) i) Optical centre: It is the central point of the lens. Reflecting surfaces do not have to be flat. (c) Pole: The centre of a spherical mirror is called its pole. Light is a form of energy that … Spherical Mirrors 1. You're signed out. Apne doubts clear karein ab Whatsapp par bhi. Convex mirror: The mirror whose outer part of the surface makes reflection of light is called convex mirrors. IMPORTANT TERMS RELATED TO SPHERICAL MIRRORS PRINCIPAL FOCUS OF CONCAVE MIRROR Rays parallel to the principal axis and falling on a concave mirror after reflection meet/intersect at a point on the principal axis of the mirror. Tap to unmute. It lies on the mirror and is denoted by the letter (P). Tap to unmute. e. Aperture:. Centre of Curvature of Spherical Mirros. Correct answer to the question: Definitions of the terms related to spherical mirror . A diverging lens bends light so it spreads light apart insteadof coming together. Radius of curvature (R) : Radius of the sphere of which the mirror is a part. The focal length of a spherical mirror is then approximately half its radius of curvature. The principal focus is represented by the letter F. The distance between the pole and the principal focus of a spherical mirror is called the focal length. Basic Terms Related to Image Formation by Spherical MirrorCentre of curvature (C): Centre of the sphere of which the mirror is a part.Radius of curvature (R): R… When a ray of light passes through the optical centre, the ray of light does not suffer any deviation and goes straight.ii) Centre of curvature: The centre of sphere of which a part of lens is formed is called the centre of curvature of the lens. Terms related to spherical mirrors: The reflected rays appear to come from a point on the principal axis when rays parallel to the principal axis fall on a convex mirror, that point is called principal focus of convex mirror. Focus: When rays parallel to principal axis gets refracted by convex lens , they converge to a point on principal axis, this point is called Principal focus. For spherical mirror having small aperture, the principal focus ‘F’ lies exactly at the midpoint of the pole P and the centre of curvature C as shown in the figure 12 & 13. Therefore the focal length of a spherical mirror (concave or convex) is equal to half of its radius of curvature. 2. b. 2 ) Convex mirror : The mirror silvered on the cave side is called as the convex mirror. This point is called the principal focus of the concave mir-ror.The principal focus is repre-sented by the letter F. IMPORTANT TERMS RELATED WITH SPHRICAL MIRRORS. Optical centre is represented by O. 1x 1.5x 2x. Inserting this into (Figure) gives the mirror equation: The mirror equation relates the image and object distances to the focal distance and is valid only in the small-angle approximation. Info. A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. o The radius of curvature (R) of a spherical mirror is the radius of the hollow sphere of glass, of which the spherical mirror is a part. Typically such a mirror is not a complete sphere, but a spherical cap — a piece sliced from a larger imaginary sphere with a single cut. Share. If the object point is displaced from the center of curvature, the paraxial image point moves in the opposite direction along a straight line joining the object point to the center of curvature (Figure 15.1). I like to share this Define Reflection with you all through my article. (ii) Radius of Curvature (R) The radius of the hollow sphere of which the mirror is a part, is called radius of curvature. The distance from the pole to the focal point is called the focal length (f). TERMS RELATED TO SPHERICAL MIRRORS. (a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of glass of which the mirror is a part. 4. c. 5. d.3. Learn all school-level subjects based on Nepal Education Board for free in DLC. The most common curved mirrors are spherical. Focal length = Radius of curvature / 2 Or 2 F = R (ii) Centre of curvature The centre of curvature is the centre of a sphere from which the given spherical mirror (convex or concave) is obtained. However, as discussed above, in the small-angle approximation, the focal length of a spherical mirror is one-half the radius of curvature of the mirror, or. These are illustrated in Fig. A converging lens bends light so that the light rays cometogether to a point. What were the properties that enabled these spherical mirrors to be so special? Cancel. Introduction to Light – Reflection & Refraction. 17.8 K+ views | 800+ people like this Terms Related to Spherical Mirrors “Mirror, mirror on the wall, who’s the fairest of them all?” We’ve all heard this dialogue from the story of Snow white and the seven dwarfs. The central point of the reflecting surface of a spherical mirror is termed as the pole. Definitions Related to Spherical Mirrors: Pole: The central point of the reflecting surface of a spherical mirror is called the pole of the mirror. convex mirror - a spherical mirror whose reflecting surface is bent outwards is called concave mirror.\ Terms related to spherical mirrors: Pole Mirrors reflect light and allow us to see ourselves. Light: Definition. We call these types of mirrors also spherical mirrors because they are pieces of a sphere. Spherical mirrors may be concave (converging) or convex (diverging). CLICK HERE. The focal length of a spherical mirror is one-half of its radius of curvature: \(f = \frac{R}{2}\). Curved Mirrors. Questions pertaining to spherical mirrors If you're seeing this message, it means we're having trouble loading external resources on our website. Properties of image formed by a plane mirror. Watch later. Terms Related to Spherical Mirror : When a light travels from a point and strikes a reflecting surface making an angle with the normal which is perpendicular to the surface, then the light gets reflected at the same angle that it formed with the normal. Up Next. - brainsanswers-in.com Some Terms Related to Spherical Mirrors are Given Below (i) Centre of Curvature It is the centre of the sphere of which the mirror or lens is a part. SphericalMirrorsT- 1-855-694-8886Email- info@iTutor.comBy iTutor.com 2. a. An aperture of a mirror or lens is a point from which the reflection of … some important terms related to spherical mirrors CENTRE OF CURVATURE (C): The center of the circle whose center lies on the concave side of a curve on the normal to a given point of the curve and whose radius is equal to theradius of curvatureat that point .The centre of curvature of a spherical mirror is the centre of the imaginary hollow sphere of glass, of which the spherical mirror is a part. The mirror equation and ray … 1 ) Concave mirror : The mirror silvered on the bulging side, is termed as the concave mirror. Try it now. Optical Device A lens is an optical device that is used to bend light in aspecific way. The size of image is same as that of object; The image is as far as far behind the mirror as the object is in front of the mirror. Loading DoubtNut Solution for you. Watch 1000+ concepts & tricky questions explained! Copy link. If playback doesn't begin shortly, try restarting your device. Shopping. The centre of curvature of a spherical mirror is the centre of the hollow glass sphere of which the mirror …
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