Moreover, it means that they make an image as large as zoom (appearance). Class 10 Physics Light Reflection Refraction: Mirror Formula & Magnification: Mirror Formula & Magnification. Question 1 An object is placed at a distance of 10cm from a convex mirror of focal length 15cm.Find the position and nature of the image? It is defined as ratio of size of image(h’) to size of object(h). The distance of position of image on principal axis from pole of spherical mirror is called image distance(v). It is also given in terms of image distance and object distance. A positive sign in the value of the magnification indicates that the image is virtual. To know more, visit Byju's.com Filed Under: Class 10, Light-Reflection and Refraction Tagged With: image distance, magnification, mirror formula, object distance, real image, virtual image About Mrs Shilpi Nagpal Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. It is given that in plane mirror, object height and image height are equal. The +ve value of magnification represents virtual image of an object. From the figure given above, it is obvious that the object AB is placed at a distance of U from P which is the pole of the mirror. The power of a lens is defined as the reciprocal of its focal length. A negative sign in the value of the magnification indicates that the image is real. Sign convention for reflection by spherical mirror, Filed Under: Class 10, Light-Reflection and Refraction Tagged With: image distance, magnification, mirror formula, object distance, real image, virtual image. It is equal to the ratio of image distance to that of … Image formation by lenses ; Sign convention for spherical lenses; Lens formula & Magnification; Power of a lens; Class 10 Physics Light Reflection Refraction: Power of a lens: Power of a lens. A ray of light starting from the end point A of the object and moving parallel to the principal axis strikes the mirror at the point E. it is reflected at E and passes through the principal focus F. Complete Mirror Formula and Magnification … The distance of the image from the pole of the mirror is called the image distance (v). Question 3 What are the sign conventions for a convex mirror? The distance of the object from its pole is called the object distance (u). Question 4 What are the sign conventions for concave mirror? To derive concave mirror formula consider fig. Economics Chapter 1 Development – Notes & Study Material, Geography Chapter 6 Manufacturing Industries – Notes & Study Material. Mirror Formula : Where:-The distance of the object from its pole is called the object distance (u). Mirror Formula : Where:-The distance of the object from its pole is called the object distance (u). The distance of the principal focus from the pole is called the focal length (f). Question 2 A concave mirror produces three times magnified real image of an object placed at 10cm in front of it.Where is the image located? Mirror Formula Derivation. Learn about Mirror Formula, its derivation and Magnification formula for class 10 Physics. Mirror Formula & Magnification; Refraction of Light; Refractive Index; Refraction by spherical lenses; Terms related to lenses. It means they can magnify objects 4 times, 10 times, 40 times, 100 times, and 400 times. Calculating magnification with the help of lens formula: Magnification of a lens is defined as the ratio of the height of an image to the height of an object. Understanding the magnification physically is quite easy and every one of us can recognize it. Magnification produced by a spherical mirror gives the relative extent to which the image of an object is magnified with respect to the object size. Your email address will not be published. Formula of Magnification. Question 6 What do you mean by magnification produced by mirrors? The Mirror formula explains how object distance (u) and image distance (v) are related to the focal length of a spherical mirror.
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