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Spherical mirrors bend light, producing unique images. The light that hits the inside of the curved part of the mirror reflects back and produces an image that appears to form behind the mirror in the physical world. This mirror is called a concave mirror. So it is usually used as the mirror in makeup mirrors or in telescopes as it focuses on the light and makes the images clearer. But if the light strikes the outside of the curve of the mirror, it reflects back and produces a magnified image that appears to be located in front of the mirror. It is known as a convex mirror, you see. Convex mirror can also be commonly seen in stores or the roads, which helps to identify the outcoming vehicles from the corner point.
Now, let me introduce you a term that you need to get use to it, lenses. A lens is a specific type of material that can bend or change the direction light travels. Because of the shape of power, the direction of light is varied through a lens. Spherical lens: A spherical lens is a lens that is designed like a ball just like a spherical mirror!
Spherical lenses can either converge (bring together) or diverge (spread apart) a beam of light depending on their curvature. Convex lens is a type of lens that converges light, and concave lens is a type of lens that diverges light. This makes convex lenses common in products such as glasses for people with far sightedness. Desperately try to grab this paralleled light into focus or we use concave lenses in different devices such as cameras, etc.
The focal point for a concave mirror is located in front of the mirror, which is what allows it to seemingly focus light. You can imagine it as a place where the light rays are converging to form a clear picture. In the case of a convex mirror, the focus is behind the mirror hence, the images appear larger and distant as well. The focal length of a spherical mirror is important to know if you are going to use it to produce images or to amplify the size of an object.
First, one needs to properly situate the mirror or the lens. If your mirror is a sphere, the object you want to see must be directly in front of the mirror. That way, proper reflection of light from the object, would hit the mirror. If you are using a spherical lens, ensure that the object is located on the opposite side of the lens than the person looking. This guarantees that the light is directed through the lens properly.
Next we will be covering two key concepts which are reflection and refraction. Reflection is the phenomenon in which light falls on a surface and gets reflected back as from a spherical mirror. This is why you can look at your own reflection! Refraction on the other hand, is when the light travels through a material like a sphere lens. This phenomenon changes the direction of light waves and can make objects appear different than they actually are.
Reflection and refraction study Both of the Reflection & refraction are critical to how spherical mirrors and lenses work, Understanding these principles does help you understand a new world of optical wonders. You may even begin to notice how light operates in real life, such as seeing your reflection in a puddle of water and how spectacles help vision.
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