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It is to change the objective of the lenses in the microscope
They are based on the principle of refraction.
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Glasses with lenses impregnated with a substance which turns darker in response to the amount of light shining on it. This indoors the lenses are clear glass, while outside they function as sunglasses.
The nosepiece in a microscope holds and rotates the objective lenses. By rotating the nosepiece, different objective lenses can be selected and brought into position to vary the magnification of the specimen being viewed. This allows for easy and quick adjustment of magnification without having to manually switch out lenses.
Lenses do not reflect light; instead, they primarily refract it. When light passes through a lens, its speed changes due to the lens material's optical density, causing the light to bend. Convex lenses converge light rays to a focal point, while concave lenses diverge them. Some light may be reflected at the lens surfaces, but the main function of lenses is to manipulate light through refraction.
The revolving nosepiece, also known as the turret, serves to hold multiple objective lenses and allows for quick and easy switching between them. This function enables the user to change magnification levels without having to physically remove and replace lenses, facilitating efficient observation and analysis of specimens. Additionally, it helps maintain the correct alignment of the lenses with the eyepiece, ensuring a clear and focused image.
The nose piece on a microscope holds and supports the objective lenses, allowing them to be easily rotated and selected for magnification. It also helps to adjust the focus of the lenses by moving them closer or farther away from the specimen.
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It is to change the objective of the lenses in the microscope