It explains about properties of different types of mir. All of them are segments of spheres centered on a horizontal axis. The terms are used as adjectives to describe the types of lens, mirrors, polygons, etc. When parallel rays could be from a distant object incident on a concave mirror, the reflected rays converge to a focal point f, hence also called converging. Wha are the uses of plane mirrors, concave mirrors and convex mirrors. For concave mirror, the reflected rays converge to the focal. A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Lenses refraction pdf books bellow will present you all associated to concave and convex mirrors. While clicking on the concave mirror button, a concave mirror, object and its image will be displayed in the window. Snc 2d light and geometric optics convex mirrors extra practice worksheet a draw a ray diagram for each to locate the image.
We now want to derive two simple equations which provide quantitative relationships among the quantities we have defined to describe mirrors, i. Try to explain the terminology to your partner before looking at the definition cards. In order for the tooth hole to be clearly visible by the doctor, the mirror used should be able to. Ask your doubt of concave mirror and get answer from subject experts and students on topperlearning. A convex lens is known as a converging lens, whereas a concave lens is also known as a diverging lens. Types of mirrors figure 1 shows the three types of mirrors we will consider. Three types of mirrors are plane mirrors, concave mirrors and convex mirrors. On the contrary, in a concave mirror, the reflecting surface bulges inwards the main difference between a convex and concave mirror lies in the image formed by the two mirrors, i. Concave mirrors are also called as convergence mirrors, because concave mirrors cause the incoming parallel rays together and it causes these rays to.
Sign convention for spherical mirrors the sign conventions for the given quantities in the mirror equation and magnification equations are as follows. Curvedspherical mirror a curved mirror is a mirror with a curved reflecting surface. Worksheets on concave and convex mirrors teachers pay. Difference between convex and concave lens with figure. Sep 27, 2019 shop security mirrors shopkeepers install convex mirrors at different places on their shop this help them keep track of thieves and shoplifters since these mirrors give wide field of view, a large portion of shop can be seen with the help of a single mirror use of concave mirrors we saw that, image formed by concave mirrors is. This is why they show up in sideview mirrors on cars and in security mirrors on roads and in stores. Convex mirrors give an erect, virtual, full size diminished image of distant objects. Concave mirrors can form inverted and real images and also virtual and erect images. The exhibition presents a range of recent works by kapoor, including red to blue 2016 three large concave disks, whose colours change as one moves around them, subtly echoing the gallerys round amber skylights while the two round forms of glisten eclipse 2018, a corner artwork, recalls how soane would use convex mirrors in the.
The mirror used is a concave mirror or a convex mirror. One mark questions convex mirror for seeing traffic at the. Concave and convex mirror terminology c f p principal axis reflect on the terminology used when f referring to concave and convex mirrors and the images they form. So far we have discussed concave and convex mirrors qualitatively and graphically. In case of convex mirror, parallel rays are diverged. Science plane, concave and convex mirrors and reflection. Convex mirror has two ray diagrams because its principal focus and the centre of curvature lies behind its reflecting surface. When parallel rays could be from a distant object incident on a concave mirror, the reflected. A curved mirror formed by a part of a hollow glass sphere with a reflecting surface created by depositing silver metal is also referred to as a spherical mirror. A curved mirror formed by a part of a hollow glass sphere with a reflecting surface created.
Do you think the laws of reflection for plane mirrors apply to curved mirrors. A concave mirror is a mirror that is curved inward in the middle. Two concave mirrors are placed on same principal axis. If the inner side of the spherical mirror is reflecting, it is called a concave mirror. In a plane mirror the image is the same size as the object and the same way up. There are two types of spherical mirrors, convex mirror and concave mirror.
Concave and convex are used in many lenses, mirrors, etc. One such difference is the structure of convex lens is like, thicker at the centre and thinner at the edges. If the outside surface is polished, is it a convex mirror. For converging mirrors and diverging mirrors, the focal length is equal to onehalf the radius. A convex mirror can only produce a virtual image since all reflected rays will diverge. It will be provided by 30 september and will be updated regularly. It might help you to remember this if you think that when you look in a concave mirror, it looks like you are.
Remember that 0 for concave and terminology scoilnet. Where will the image form if the same object is placed 15 cm in front of a convex mirror with a focal length of 18 cm. On the other hand, convex is used to describe an entity having an outline or surface that bulges out. Concave mirror convex mirror image formation by concave mirror concave mirror ray diagram image formation by convex mirror. Various terms associated with spherical mirrors spherical mirror. Both equations are valid for concave and convex mirrors and for real and virtual images. Jun 16, 2018 the video in english explains about different types of mirror i. Consider the case where the shape of the mirror is such. Nov 15, 2017 on the contrary, in a concave mirror, the reflecting surface bulges inwards the main difference between a convex and concave mirror lies in the image formed by the two mirrors, i. If the object distance is greater than the focal length f then the concave mirror produces an inverted image. Convex mirrors reflect light outwards, therefore they are not used to focus light. Here is a set of templates you can use to demonstrate to your students how to draw the ray diagrams for concave mirrors, convex mirrors, converging lenses and diverging lenses. An image which can be formed on the screen is known as real image and the one which cannot be formed on screen is known as a virtual image.
Ncert cbse solutions for class 10 science chapter 10. Oct 23, 2019 let us find out what are mirror and lenses, phenomenas associated with them, applications, convex lens, concave lens, convex mirror, concave mirror in the form of mcqs. Identify the type of mirror plane, concave, convex used in each situation. Also, they have a wider field of view as they are curved outwards. Concave mirrors and convex mirrors image formation, ray diagram. Reflect on the terminology used when referring to concave and convex mirrors and the images they form. Wha are the uses of plane mirrors, concave mirrors and convex. Concave mirrors are silvered on the inside of the sphere and convex mirrors are silvered on the outside of the sphere.
For session 20192020 free pdf will be available at. Dec 08, 2018 eight important differences between convex and concave lens are compiled in the article in tabular form. If the inside surface of the spherical mirror is polished, it is a concave mirror. Difference between convex and concave mirror with comparison. The examples of convex mirrors are the mirrors used as rear side mirrors of vehicles, optical instruments, calling bell, etc. Difference between concave and convex concave vs convex. Such mirrors always form a virtual image, since the focal point f and the centre of curvature 2f are both imaginary points inside the mirror, that cannot be reached. Aug 24, 2017 the detailed explaination about concave and convex mirrors is as follows. This handson activity allows your students to discover the difference between reflections in concave and convex mirrors for themselves using spoons.
S concave mirror s convex mirror s pencil s ruler procedure. Applications and uses of concave and convex mirrors teachoo. Explore more about concave mirror ray diagram, convex mirror ray diagram and much more at. You must understand the differences between these two kinds of mirrors, be able to draw. Optics exam2 and problem solutions physics tutorials. The plane mirror is a flat surface, where the object reflected has an image the same size. All images formed from convex mirrors are erect, virtual, and diminished in size. Concave mirrors are also called as convergence mirrors, because concave mirrors cause the incoming parallel rays together and it causes these rays to converge. Examine the diagram label the diagram with the terminology. The concave mirrors, curved as the inside of a bowl, are used for focusing light, and the images often appear larger and. Chapter 34a reflection and mirrors geometrical a powerpoint presentation by paul e. Three more labs to study plane, convex and concave mirrors. These labs require very little setup and could be used in centers or stations. Worksheets on concave and convex mirrors teachers pay teachers.
Cbse 2015 the images formed by two parallel plane mirrors will be infinite. Difference between concave and convex mirrors is discussed and compared with a. You must be able to draw ray diagrams for plane mirrors, and be able to calculate image and object heights, distances, and magnifications. Set up the ray box, protractor, and concave mirror in a manner similar to the method used for reflection from a. Curved mirrors are all around us in stores, telescopes and even in.
The concave side is frontsurface perfect for a physics unit on light and reflection. Mirror equation minus since inverted magnification equation consider the real image produced from a concave mirror. The terms concave and convex are from the perspective of the object. How many images are formed by two parallel mirrors. Geometrical optics in the study of how light behaves, it is. The detailed explaination about concave and convex mirrors is as follows. The surface may be either convex bulging outward or concave bulging inward. Ray hits the vertex of mirror 1 and reflects with same angle. Use a light source, concave mirror, and half screen accessory on an optics bench to measure the focal length of the concave mirror. There will be a window having two buttons named concave mirror and convex mirror. The examples of concave mirrors are the mirrors used in automobile head lights, reflecting telescopes, torch lights, etc. How will our image be in concave and convex mirrors.
Concave mirror problems and solutions solved problems. Differentiate between convex mirror and concave mirror. Conversely, the concave lenses are thinner at the centre and thicker at its edges, in structure. Concave and convex mirror questions cyberphysics concave and convex mirror questions construct optical diagrams to answer these questions. Shop security mirrors shopkeepers install convex mirrors at different places on their shop this help them keep track of thieves and shoplifters since these mirrors give wide field of view, a large portion of shop can be seen with the help of a single mirror use of concave mirrors we saw that, image formed by concave mirrors is. Anish kapoor on the power of concave mirrors cobo social. The video in english explains about different types of mirror i. The directions are written directly to the students so you dont have to introduce them. One mark questions convex mirror for seeing traffic at. Concave mirror problems and solutions solved problems in. The law of reflection applies, just as it does for a plane mirror, i.
Learn about concave mirrors and convex mirrors indepth. A mirror that bulges outwards is called a convex mirror. When parallel rays could be from a distant object incident on a concave mirror, the reflected rays converge to a focal point f, hence also called converging mirror. This compact and easily stored mirror is convex on one side and concave on the other. Difference between concave and convex mirrors is discussed and compared with a plane mirror. Concave parabolic b differences between a real and. For plane mirrors, the object distance equals the image distance and all images are erect and virtual.
Theyre great additions to a study of light and optics. Convex mirrors are useful because by demagnifying they squeeze a lot of the world into a small image, so they allow us to look in lots of directions at once. Spherical mirrors can be thought of as a portion of a sphere which was sliced away and then silvered on one of the sides to form a reflecting surface. A convex spherical mirror has the silvered surface of the mirror on the outer, or convex, side of the curve. The focal length f of the concave mirror is 4 cm, therefore the patients teeth should be less than 4 cm in front of a concave mirror. To create a real image with a concave mirror, the object must be outside the focal point.
This demo uses spoons to show students the difference between a reflections created by curved mirrors and how distance from the mirror changes the ref. Why do we prefer a convex mirror as a rearview mirror in vehicles. Concave mirrors are silvered on the inside of the sphere and convex mirrors are silvered on the. Concave and convex mirrors ray diagram for convex and. A concave lens is thinner in the middle and thicker at the edges. Oct 03, 2018 concave and convex mirrors are spherical mirrors. Therefore, not more than two positions of the object can be obtained in relation to these points unlike concave mirrors where more than two ray diagrams are constructed to find out the position of the image for different relative positions of the object. Concave and convex mirrors are examples of spherical mirrors.
A concave mirror has a radius of curvature of 24 cm. Concave and convex mirrors ray diagram for convex and concave mirror a mirror is a part of a smooth and highly polished reflecting surface. A real image is formed by the intersection of real light rays. Eight important differences between convex and concave lens are compiled in the article in tabular form. Where will the image form if the same object is placed 15 cm in front of a convex mirror. On the other hand, a convex lens is thicker in the middle and thinner at the edges. If the outer side of the spherical mirror is reflecting, it is called a convex mirror. Your students can use the templates to complete their lesson, practice and homework. Let us find out what are mirror and lenses, phenomenas associated with them, applications, convex lens, concave lens, convex mirror, concave mirror in the form of mcqs. The purpose of this activity is to measure the focal length of a concave mirror.
The concave mirrors, curved as the inside of a bowl, are used for focusing light, and the images often appear larger and upside down to the original object. A mirror is a surface which reflects a clear image. While clicking on the concave mirror button, a concave mirror. Concave is used to describe any entity having an outline that curves inwards. The concave mirror can give erect and enlarged image when the object is placed between pole and focus. The main difference between concave and convex mirrors is the most easily seen.