∴f = 10 cm. Image distance is the distance of the image from the pole of the mirror and it is denoted by the letter v. And focal length is the distance of the principal focus from the pole of the mirror. Your email address will not be published. When the object is moved 10 cm towards the mirror the new position of the object is. d. All the distances parallel to the principal axis are measured from the pole (p) of the mirror. Physics Grade XI Reference Note: Mirror formula for concave mirror when real image is formed and for convex mirror. Physics. Magnification is the increase in the image size produced by spherical mirrors with respect to the object size. Magnification, m = – v/u. Stay tuned with BYJU’S to learn more about spherical mirrors, surface tension and much more. The magnification, m produced by a spherical mirror can be expressed as: \(m=\frac{h}{{h}'}\) Here, h is the height of image and h’ is the height of the object. You may need to download version 2.0 now from the Chrome Web Store. `1/f=1/v+1/u`. • The Mirror formula explains how object distance (u) and image distance (v) are related to the focal length of a spherical mirror. The expression which gives the relation between these three quantities is called the mirror formula which is given as: 1v+1u=1f Mirror formula is applicable for all spherical mirrors for every position of the object. The focal length is the distance from the center of the mirror in which reflect light is most densely focused. Curved Mirrors. Performance & security by Cloudflare, Please complete the security check to access. or, v = uf / (u -f) Therefore, m = v/u = f / u … The mirror formula is applicable both in spherical mirrors (concave mirrors and convex mirrors) and in plane mirrors. or, 1/v = 1/f – 1/u. Magnification is also equal to the ratio of image distance to the object distance. We can define two general types of spherical mirrors. Let’s learn about formula and magnification produced by spherical mirrors. The water forms spherical droplets due to the influence of. =`1/ ( (-30))+1/ ( (-15))`. The height of virtual images should be taken positive while the height of real images should be taken negatively. Spherical mirrors are the mirrors having curved surfaces that are painted on one of their sides. The expression for the magnification of a spherical mirror in terms of focal length (f) and the distance of the object from mirror (u) is : 0. 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Object distance is the distance of the object from the pole of the mirror; denoted by the letter u. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. e. All the distances … Cloudflare Ray ID: 5f8dbcdb6b5b3006 Image distance is the distance of the image from the pole of the mirror and it is denoted by the letter v. And focal length is the distance of the principal focus from the pole of the mirror. A water droplet acts as a simple magnifier that magnifies the object behind it. The tangent BD we drew to the mirror (in Fig B) in which points B and D are considered as a single point on the mirror is of a small aperture. c. The object is always placed on the left side of the mirror which implies that light falling from the object on the mirror is on the left-hand side. If the reflecting surface is the outer side of the sphere, the mirror is called a convex mirror.If the inside surface is the reflecting surface, it is called a concave mirror.. Symmetry is one of the major hallmarks of many optical devices, including mirrors and lenses. Mirror formula: The relation between the distance of the object from the pole of the spherical mirror (u), the distance of the image from the pole of the spherical mirror (v) and its focal length (f) is given by the mathematical formula : It must be remembered that focal length (f) of a spherical mirror … The negative magnitude of magnification indicates real and inverted image. ∴u = -15 cm. Virtual images will be located behind the mirror surface. Image distance is the distance of the image from the pole of the mirror and it is denoted by the letter v. And focal length is the distance of the principal focus from the pole of the mirror. `1/f=-1/10`. It is the ratio of the height of the image to the height of the object and is denoted as m. The magnification, m produced by a spherical mirror can be expressed as: m = h h Here, h is the height of image and h is the height of the object. By convention, if the resulting magnification is positive, the image is upright. Object distance is the distance of the object from the pole of the mirror; denoted by the letter u.

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