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JEE Main 2026 Preparation: Question Papers, Solutions, Mock Tests & Strategy Unacademy » JEE Study Material » Physics » CONVEX MIRROR VS CONCAVE MIRROR

CONVEX MIRROR VS CONCAVE MIRROR

The rotating mirror, or concave mirror, has a bright spot set inward (away from the incident light). Concave mirrors reflect light inside one place. They are used to focus on light.

Table of Content
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A convex mirror, or simply a curved mirror, is a mirror in which a bright spot explodes toward a light source. The surface of the curved mirror can be convex, which means to protrude outward, or curve, to protrude inside. A convex mirror reflects light outside so it is not used to focus on light.

A concave mirror is a mirror curved in the center. It may be helpful to keep this in mind when you consider that when you look in a mirror, you are, in effect, looking at yourself in a cave. The equation we use when dealing with concave mirrors is called the mirror equation. This calculation is used to determine how far an object is from the screen (image distance) and how large or small an object is (object size.)

Convex Mirror

The Convex Mirror is a curved mirror that illuminates the light source. This outdoor display reflects light from the outside and is not used to focus on light. These mirrors form a visual image as the focal point (F) and the center of the curve (2F) are the imaginary points on the screen that cannot be reached. This causes the formation of images that can be displayed on the screen as the image is inside the screen. The image looks smaller than a distant object but becomes larger as the object approaches the screen.

The center of the original circle is called the center of bending (C) and the line that passes through the center of the mirror in the center is called the main axis. The mirror consists of a focus area (F), located near the central axis between the bend center and the mirror position. Both the bending center and the focus area are located on the opposite side of the mirror. Since the focus area is located behind the convex mirror, the mirror is said to have the wrong focal length.

Use of Convex Mirror

Convex mirrors are often used in the hallways of buildings including shops, schools, hospitals, hotels and residential buildings.

They are used on roads, sidewalks, and sidewalks to provide safety for all cyclists and motorists on corners and curves and in areas where they are not visible.

They are also used in other cash registers as a useful security feature that allows the user to see everything that is going on behind them.

They are used in a car seat mirror and somewhere it says “things on the mirror are closer than it looks” to warn the driver.

Concave Mirror

If the empty sphere is cut into parts and the outside of the cut part is painted, then it becomes a mirror with its inner surface as a reflection area. This type of mirror is known as a concave mirror.

Features of Concave Mirrors

The light meets in the area where it strikes and reflects back from the reflective position of the curved mirror. Therefore, it is also known as a flexible mirror.

When a concave mirror is placed too close to an object, a magnified and visible image is obtained.

However, if we increase the distance between the object and the mirror then the size of the image decreases and a real image is formed.

The image created by the concave mirror can be small or large or real or visual.

Image Design With Concave Mirror

By changing the position of the object in the concave screen, different types of images can be created. Different types of images are created when an object is placed:

In eternity

Across the bend center

In the middle of the bend

Between the center of bending and the main focus

Focus on principal

Between the main focus and the pole

Performance of Concave Mirror

A concave mirror is a type of mirror that is curved in the center of the center. Plus, when you look in this mirror, you will feel like you are looking at a cave. Alternatively, we use the mirror equation to deal with concave mirrors.

The equation of these mirrors determines how far away an object is from or close to the mirror and how big the object is (large or small). 

In addition, the law of reasoning still applies to the surface of a cave mirror. However, the incident angle on the concave screen does not match the display angle.

Alternatively, the angle of light depends on the area in which the light strikes. In addition, this helps the mirror to act as a camera lens that focuses on light to create an image.

Also, concave mirrors can focus on the actual image of the front mirror projects in the area where the light is focused.

The image created by CM looks like a picture floating in the air. Also, you do not need to look in the mirror to see a picture of this object.

Two concave mirrors placed on top of each other will create an image of what appears to be floating in the air on the upper side of the mirror.

Concave Mirror properties

Before discussing the structures of a concave mirror we should understand a certain point about the image formed by a concave mirror. First, in a circular CM-shaped screen the focus distance is half the radius of the focal length.

Second, a mirror reflects a beam of light emanating from the center in the same direction. Finally, image form with CM can be real or real. Thus, the features of a concave mirror are:

When an object is inserted between the focus and the mirror- In that case, the image form above is more realistic and larger than the object and in the same shape as the object.

When an object is inserted between the center of the mirror and the focus point- In this case, the shape of the image with the mirror is more realistic and larger than the object. In addition, the composition of the image is also distorted.

The object is kept two distances away from the screen- In that case, the image will be realistic and transformed. Otherwise, the image structure is small in size.

Use of Concave Mirror

The use of concave mirrors is very common in many home appliances and appliances such as shaving mirrors, flashlight, headlights etc. and large devices such as airplanes, telescopes etc.

CONCLUSION

Round mirrors are mirrors with curved areas painted on one side. Circular mirrors for interior design are known as convex mirrors, and circular mirrors for outdoor painting are known as concave mirrors.

faq

Frequently asked questions

Get answers to the most common queries related to the JEE Examination Preparation.

Which image is created by a drop in the mirror?

Ans-:Concave mirrors can produce both real and virtual images; they can be str...Read full

Is Spoon a concave mirror?

Ans-:The inside of the spoon acts like a curved mirror, while the outside of i...Read full

What is a convex lens?

Ans-: The vision lens is usually made up of two circles. If those areas are cu...Read full

Why is the image distorted in the mirror?

Ans-:The image of everything in front of the mirror seems to be reversing, fol...Read full

What is the difference between a concave and a convex lens?

Ans-:The concave lens is thin in the center and thick at the edges. The convex lens is thick in the middle and thin ...Read full

Ans-:Concave mirrors can produce both real and virtual images; they can be straight (if they are real) or distorted (if they are real); they can be behind the mirror (if it is real) or in front of a mirror (if it is real); they can be enlarged, reduced, or the same size as the object.

Ans-:The inside of the spoon acts like a curved mirror, while the outside of it acts like a convex mirror.

Ans-: The vision lens is usually made up of two circles. If those areas are curved, the lens is called a biconvex lens or just a convex lens. These types of lenses can absorb external light and focus in the opposite direction.

Ans-:The image of everything in front of the mirror seems to be reversing, following the trail we traveled to get there. There is no left-to-right or right-down switch. Instead, it is turned backwards and backward. That sparkle represents light photons, which go back to where they came from.

Ans-:The concave lens is thin in the center and thick at the edges. The convex lens is thick in the middle and thin at the edges. Used in camera, focused sunlight, advanced projector, project microscope, light telescope, magnifying glasses, etc. It is also used to fix a problem if you see it for a long time.

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