Concave and Convex Spherical mirrors - Definition, Types, Uses, Image Formation, FAQs

Edited By Vishal kumar | Updated on Sep 24, 2024 11:14 AM IST

Define Spherical Mirror.

Spherical mirror definition and spherical meaning:
A spherical mirror is any visible area that illuminates the light and produces a realistic image or virtual image. When an object is placed in front of a spherical mirror, a picture of the same object appears on the aperture of mirror or aperture of spherical mirror. The object is the source of the incident radiation, and the image is made up of reflected radiation. Depending on the interaction of light, images are classified as realistic or virtual imagery. The actual image occurs when the light rays meet while the virtual images appear due to the apparent difference of the light rays from the point.
Ray's drawings help us to trace the path of light so that one can see the point in the object image. Ray's drawing uses of spherical mirror lines with arrows to represent the event rays and the ray shown. It also helps us to keep track of where the light is going.

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Define Spherical Mirror.
Circular spherical mirrors
Concave spherical mirror
Convex spherical mirror
Use of Convex Spherical mirror

Concave and Convex Spherical mirrors - Definition, Types, Uses, Image Formation, FAQs

Plane mirror vs Spherical mirrors and types of spherical mirror:

Spherical mirrors are made in different shapes for different purposes.

The two most prominent types of spherical mirrors are:

Plane mirrors

Circular spherical mirrors

The flight screen is a smooth glow. The flight screen always creates a straightforward virtual image, and with the same shape and size as the object, it shows. A circular spherical mirror is a spherical mirror with a constant curve and a continuous curved width. Images created with a circular spherical mirror can be real or virtual. Circular spherical mirrors of two types such as:

Concave spherical mirror

Convex spherical mirror

In the next few sections, let’s take a closer look at the features of interlocking and overlocking spherical mirrors and images created by them when an object is stored in various locations.

Circular spherical mirrors

Circular spherical mirrors are spherical mirrors with curved areas painted on one side. The circular spherical mirrors of the interior are known as convex spherical mirrors, while the circular spherical mirrors of the exterior are known as concave spherical mirrors.

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Concave spherical mirror

If the empty area is cut into parts and the outside of the cut part is painted, then it becomes a spherical mirror with its inner surface as a luminous surface. The given type of spherical mirror is called a concave spherical mirror.

Features of Concave Spherical mirrors

The light meets when it strikes and reflects back from the reflective surface of the concave spherical mirror. Therefore, it is also known as a flexible spherical mirror.

When a concave spherical 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 spherical mirror the image size decreases and a real image is formed.

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

Convex spherical mirror

If a cut part of a blank field is painted on the inside, then its exterior becomes a bright spot. The given type of spherical mirror is called a convex spherical mirror.

NCERT Physics Notes :

Features of Convex Spherical mirrors

A convex spherical mirror is also known as a diversion spherical mirror as it separates light when striking in its bright spot.

virtual, vertical, and abstract images are usually constructed of convex spherical mirrors, regardless of the distance between the object and the spherical mirror.

Use of Convex Spherical mirror

Convex spherical mirrors are usually used in the corridors of buildings that include shops, schools, hospitals, hotels and apartment buildings.

They are used on sidewalks, sidewalks, and ropes to provide safety for all cyclists and riders at curves and other places where they are not visible.

They are also used in other automated reporting systems as an usable security feature that allows the user to see what is happening behind them.

They are used on the sidewalk of a car and in one place it says “things in the spherical mirror are closer than they look” to warn the driver.

Image formation with Convex spherical mirror

There are two possibilities terms related to spherical mirror to the shape of an object in a convex spherical mirror.

When an object is in an infinite position, a balanced image is formed with the main focus being behind the convex spherical mirror. The built-in image is very thin, virtual and upright.

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When the Object is between the end and the pole

When the object is between the end and the convex spherical mirror pole, a thin, virtual and vertical image is formed between the pole and the focus that is behind the spherical mirror. The built-in image is slender, visible and upright.

A concave spherical mirror, also called a flexible spherical mirror, has its own space that shows the explosion inside, e.g. Away from the incident light. There are many uses of concave spherical mirrors in everyday life. It is used for the arrival of planes to steer the plane, is used as a lamp to reflect light rays, is used during shaving to get a standing and enlarged face image, etc.

Other uses of the concave spherical mirror are listed at the bottom points.

Shaving glasses

Head spherical mirrors

Ophthalmoscope

Star telescopes

Front lights

Solar panels

Concave spherical mirrors reflect light within a single focused light. Therefore, they are used to focusing on light. A concave spherical mirror shows different types of image depending on the distance between the spherical mirror and the object. Concave spherical mirrors are called interlocking spherical mirrors because as light falls on the screen, it collects light and recovers the corresponding incoming radiation. Some of the most important and common applications of concave spherical mirrors are described below.

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Used for shaving glasses

Concave spherical mirrors are often used for shaving due to the bright and sharp surface. During shaving, the concave spherical mirror creates a magnified and upright image of the face when the spherical mirror is held close to the face.

The Concave spherical mirror uses an ophthalmoscope

Concave spherical mirrors are used in virtual aids such as the Ophthalmoscope. The Ophthalmoscope contains a delicate spherical mirror with a hole in the center. The doctor focuses on a small hole in the back of the concave spherical mirror while a bright light is directed at the patient's eye. This makes the retina more visible and makes it easier for doctors to examine.

The use of concave spherical mirror in astronomical telescopes

Concave spherical mirrors are also used to make star telescopes. On an astronomical telescope, a concave spherical mirror of 5 feet [5 m] or more is used.

Concave spherical mirrors used in front lights

Concave spherical mirrors are widely used in car and car lights, headlights, train engines, etc. as indicators. The light source is placed in the spherical mirror storage area, so after exposure the light rays travel as far as the corresponding light rays of greater intensity.

Used in solar panels

Large concave spherical mirrors are used to focus on the sun to produce heat in the solar furnace.

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Frequently Asked Questions (FAQs)

1. What are the rules of concave and convex spherical mirrors?

Guidelines for Radiation Falling on the Concave and Convex Spherical mirrors.

When a ray strikes concave or convex spherical mirrors unevenly on its pole, it appears inappropriate.

When a ray, like the main axis strikes concave or convex spherical mirrors, the reflected ray passes through the focus on the main axis.

2. What is the focus of a concave mirror?

Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror.

3. What are some other uses of concave spherical mirrors?

Concave spherical mirrors are used as search lights, shaving spherical mirrors, satellite dishes, and much more. These spherical mirrors have a meeting place and focus light rays. Concave spherical mirrors with flashlights and headlights are used as indicators.

4. How do doctors use a concave spherical mirror?

Concave glasses help to produce a larger image helps doctors to examine body parts and are used in the manufacture of light-emitting night light equipment. Concave spherical mirrors are used to focus on the sun to produce heat from the sun

5. Why do we like a convex spherical mirror in cars?

We like the interlocking spherical mirror as a rear view spherical mirror for cars because it provides a wide viewing area, allowing the driver to see most of the cars behind him. ... Convex spherical mirrors always create a clear, well-designed and subdued image of objects placed in front of it