Electric charge

Article about the Electric charge in atoms Please observe one of the objects that are around you. If you destroy an object, for example, it is a stone, the stone will be divided into smaller pieces. If the part of the stone is destroyed again, the stone pieces will turn into smaller pieces. What if …

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Optical instrument camera

Article about the Optical instrument camera Parts of camera A simple camera consists of a convex lens, diaphragm, shutter, and film. Convex lenses function to form the real and inverted image on the film. Unlike the lens of the eye that has a focal length that can change, the camera lens has a focal length …

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Equation of astronomical telescope

Article about the Equation of astronomical telescope Angle determines the size of an image of the object formed on the retina. As shown in the figure, the farther the object distance from the eye the smaller the angle and therefore the smaller the image size formed on the retina. The simple astronomical telescope has two …

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Astronomical telescope

Definition of the astronomical telescope Astronomical telescopes or astronomical binoculars are the optical instruments used to help the eye see celestial objects such as stars, planets, satellites, etc. Although the size of celestial objects is huge the distance of celestial objects is so far that when observed using the eyes, celestial bodies appear small. Astronomical …

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Equation of microscope

Article about the Equation of microscope Angle determines the size of the image of the object formed on the retina of the eye. As shown in the figure on the side, the smaller the size of the object, the lower the angle and hence the lower the size of the image formed on the retina. …

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Microscope

Definition of microscope A microscope is an optical instrument used to help the eye see very small objects, where the tiny objects are difficult to observe directly using eyes or loupe. There are two types of the microscopes namely light microscope and electron microscope. This lesson discusses the light microscope, and the way it works …

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Loupe magnifying glass

Definition of Loupe magnifying glass A loupe or magnifying glass is a convex lens that is used to help the eye see an object that is difficult to observe directly using the eye. The loupe is called a simple magnifier because it has limited ability to magnifying the image of an object. In the next …

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