Draw a Ray Diagram of Convex Mirror
Concave MirrorConvex MirrorImage Formation Past Concave MirrorImage Formation By Convex Mirror
What is a Mirror?
A mirror is a cogitating surface that bounces off light, producing either a real image or a virtual image. When an object is placed in forepart of a mirror, the prototype of the same object is seen in the mirror. The object is the source of the incident rays and the image is formed by the reflected rays. Based on the interaction of light, the images are classified as either a existent prototype or a virtual image. A real paradigm occurs when the light rays actually intersect while virtual images occur due to the apparent departure of light rays from a point.
Ray diagrams aid us trace the path of the light for the person to view a point on the epitome of an object. Ray diagram uses lines with arrows to stand for the incident ray and the reflected ray. Information technology also helps us trace the direction in which the calorie-free travels.
Plane Mirror vs Spherical Mirrors
Mirrors are fabricated into different shapes for dissimilar purposes.
The ii of the almost prominent types of mirrors are:
- Plane Mirrors
- Spherical Mirrors
A airplane mirror is a flat, smooth reflective surface. A plane mirror always forms a virtual epitome that is upright, and of the same shape and size as the object, it is reflecting. A spherical mirror is a mirror that has a consistent curve and a constant radius of curvature. The images formed past a spherical mirror can either be real or virtual. Spherical mirrors are of 2 types as:
-
- Concave Mirror
- Convex Mirror
In the adjacent few sections, allow us learn in-depth about the characteristics of convex and concave mirrors and the images formed past them when the object is kept at unlike positions.
Spherical Mirrors
Spherical mirrors are the mirrors having curved surfaces that are painted on ane of the sides. Spherical mirrors in which in surfaces are painted are known as convex mirrors, while the spherical mirrors in which outward surfaces are painted are known as concave mirrors.
Concave Mirror
If a hollow sphere is cut into parts and the outer surface of the cut function is painted, then it becomes a mirror with its inner surface as the reflecting surface. This type of mirror is known as a concave mirror.
Characteristics of Concave Mirrors
- Lite converges at a signal when information technology strikes and reflects dorsum from the reflecting surface of the concave mirror. Hence, it is also known as a converging mirror.
- When the concave mirror is placed very close to the object, a magnified and virtual prototype is obtained.
- However, if we increase the distance betwixt the object and the mirror then the size of the image reduces and a real prototype is formed.
- The image formed by the concave mirror can be small or large or can be existent or virtual.
Convex Mirror
If the cut part of the hollow sphere is painted from inside, then its outer surface becomes the reflecting surface. This kind of mirror is known every bit a convex mirror.
Characteristics of Convex Mirrors
- A convex mirror is also known equally a diverging mirror as this mirror diverges low-cal when they strike on its reflecting surface.
- Virtual, cock, and macerated images are e'er formed with convex mirrors, irrespective of the altitude between the object and the mirror.
Prototype Formation by Spherical Mirrors
Guidelines for Rays Falling on the Concave and Convex Mirrors
- When a ray strikes concave or convex mirrors obliquely at its pole, information technology is reflected obliquely.
- When a ray, parallel to principal centrality strikes concave or convex mirrors, the reflected ray passes through the focus on the principal centrality.
- When a ray, passing through focus strikes concave or convex mirrors, the reflected ray will pass parallel to the primary axis.
- A ray passing through the center of curvature of the spherical mirror will retrace its path after reflection.
Image Germination By Concave Mirror
Past irresolute the position of the object from the concave mirror, different types of images can exist formed. Different types of images are formed when the object is placed:
- At the infinity
- Beyond the middle of curvature
- At the center of curvature
- Between the center of curvature and principal focus
- At the principal focus
- Between the principal focus and pole
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Concave Mirror Ray Diagram
- Concave Mirror Ray Diagram lets united states of america understand that, when an object is placed at infinity, a existent image is formed at the focus. The size of the epitome is much smaller compared to that of the object.
- When an object is placed backside the center of curvature, a real image is formed betwixt the center of curvature and focus. The size of the image is smaller than compared to that of the object.
- When an object is placed at the center of curvature and focus, the real image is formed at the center of curvature. The size of the image is the same as compared to that of the object.
- When an object is placed in between the center of curvature and focus, the real epitome is formed behind the center of curvature. The size of the image is larger than compared to that of the object.
- When an object is placed at the focus, the real image is formed at infinity. The size of the image is much larger than compared to that of the object.
- When an object is placed in between focus and pole, a virtual and cock image is formed. The size of the epitome is larger than compared to that of the object.
Summary
| S. No | Position of Object | Position of Image | Size of Image | Nature of Image |
| i | At infinity | At the focus F | Highly Macerated | Real and Inverted |
| 2 | Beyond the middle of curvature C | Betwixt F and C | Macerated | Real and Inverted |
| 3 | At the center of curvature C | At C | Aforementioned Size | Existent and Inverted |
| iv | Between C and F | Beyond C | Enlarged | Real and Inverted |
| v | At focus F | At Infinity | Highly Enlarged | Real and Inverted |
Image Formation By Convex Mirror
The image formed in a convex mirror is always virtual and erect, any be the position of the object. In this department, allow us look at the types of images formed by a convex mirror.
- When an object is placed at infinity, a virtual image is formed at the focus. The size of the image is much smaller than compared to that of the object.
- When an object is placed at a finite distance from the mirror, a virtual image is formed betwixt the pole and the focus of the convex mirror. The size of the image is smaller than compared to that of the object.
Summary
| S. No | Position Of Object | Position of Prototype | Size of Paradigm | Nature of Paradigm |
| ane | At Infinity | At the focus F, behind the mirror | Highly diminished | Virtual and Erect |
| 2 | Between Infinity and the Pole | Between P and F, behind the mirror | Macerated | Virtual and Cock |
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Frequently Asked Questions
How do convex mirrors work?
A convex mirror is a diverging mirror in which the reflective surface bulges towards the light source. They are not used to focus light every bit they reflect light outwards. The image formed by convex mirrors are smaller than the object but gets larger as they approach the mirror.
How practice concave mirrors work?
A concave mirror has a reflective surface that is curved inward and abroad from the light source. Concave mirrors reflect light inward to one focal betoken. Unlike convex mirrors, the image formed by a concave mirror shows dissimilar image types depending on the distance between the object and the mirror.
Give examples of concave and convex mirrors.
Torch lights, automobile headlights are examples of concave mirrors. Magnifying glasses, telescopes are examples of convex mirrors.
What is the departure between a concave mirror and a convex mirror?
Spherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are chosen convex mirrors.
Can you lot distinguish concave and convex mirrors without touching them?
When you go along an object in front of a concave mirror, an enlarged epitome of the object is formed when information technology is kept shut to the mirror and an inverted image of the object is formed when it is kept at a distance. A convex mirror ever forms a small and an erected image of the object.
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