Why is convex mirror called a diverging mirror

Join Now. Question Physics Class 7. Why is a convex mirror also called diverging mirror? Light rays when get reflected from the mirror appear to be diverging from a point behind the mirror therefore, a convex mirror is called the diverging mirror. Correct Incorrect 1. Watch More Related Solutions.

What are the uses of concave mirror and convex mirror? Physics Class 7. Math Class 8. Long answer question: Explain the terms analogous and homologous organs with example.

Give their significance. Biology Class In Lesson 4, we will follow a similar pattern of inquiry for convex mirrors: investigating how convex mirrors reflect light and produce images. We will also investigate how ray diagrams can be used to estimate image location, size, orientation, and type for objects placed in front of convex mirrors.

Finally, we will use the mirror equation to calculate numerical information about image distance and size if given an object distance, object size and focal length. The diagram at the right depicts a convex mirror. In Lesson 3 , a convex mirror was described as a portion of a sphere that had been sliced away. If the outside of the sphere is silvered such that it can reflect light, then the mirror is said to be convex. The center of that original sphere is known as the center of curvature C and the line that passes from the mirror's surface through the sphere's center is known as the principal axis.

The mirror has a focal point F that is located along the principal axis, midway between the mirror's surface and the center of curvature. Note that the center of curvature and the focal point are located on the side of the mirror opposite the object - behind the mirror. Since the focal point is located behind the convex mirror, such a mirror is said to have a negative focal length value. A convex mirror is sometimes referred to as a diverging mirror due to the fact that incident light originating from the same point and will reflect off the mirror surface and diverge.

The diagram at the right shows four incident rays originating from a point and incident towards a convex mirror. These four rays will each reflect according to the law of reflection. After reflection, the light rays diverge; subsequently they will never intersect on the object side of the mirror.

For this reason, convex mirrors produce virtual images that are located somewhere behind the mirror. Throughout this unit on Reflection and the Ray Model of Light , the definition of an image has been given.

It is a lens that possesses at least one surface that curves inwards. When light rays are incident on a concave lens, they bend outwards or diverge.

The rays diverge away from each other. Thus, a concave lens is also called a diverging lens. A concave lens is thinner at its centre than at its edges, and is used to correct short sightedness. It does not focus at a single point. The image formed by a concave lens is upright, virtual and smaller than the object. For example, the images seen through a peephole are different from normal holes, because these peep holes contain concave lenses.

A convex lens makes the object magnified, when viewed through it. A convex lens is thick in the middle and thin at its edge. When light rays pass through a convex lens, they bend inwards and converge at a common point to form an image of the source of light. Rays from the sun converge to form its image as a bright spot. A convex lens converges light rays. Therefore, it is also called a converging lens. The image formed when the object is placed close to a convex lens is virtual, erect and magnified.

Virtual images cannot be caught on a screen. Images that are caught on a screen are called real images. When the object is placed at a distance from a convex lens, the image formed is real, inverted and diminished. Previous Next. Friday 12th November Registration Login. Toggle navigation HOME. Science Geography History Civics. Science Geography Civics History. Ans: The two laws of reflection are: Angle of incidence is equal to angle of reflection.

Ans: Real image can be obtained on a screen Image e. Q3: Why concave mirror is called a converging mirror and a convex mirror is called a diverging mirror? Ans: Concave mirror is called a converging mirror because parallel rays of light fall on the mirror they converge at a point called focus. Q4: Explain the nature of image formed in a concave mirror. Ans: The nature of image formed in a concave mirror depends on the portion of the object in front of the mirror.

Used as Shaving mirror. Used by makeup artists. Ans: A piece of transparent material bound by curved surfaces. Q8: Apart from rainbow where else we can see seven colours of sunlight? Q9: State the characteristics of the image formed by a plane mirror. Ans: Characteristics of the image formed by a plane mirror: Image is Virtual It is behind the mirror Image is erect means not inverted Image is of same size as the object Image is at same distance from the mirror as the object is from the mirror.

Q What is a virtual image? Give one situation where a virtual image is formed. Ans: An image which cannot be obtained on a screen is called a virtual image. A convex lens can forms real and inverted image. When the object is placed very close to the lens, the image formed is virtual, erect and magnified. A convex lens can be used as a magnifying glass A convex lens converges bends inward the light generally falling on it Concave lenses are thinner in the middle than at the edges.

A concave lens always forms erect, virtual and smaller image than the object. A concave lens cannot be used as a magnifying glass A concave lens diverges bends outward the light.