Why does high power magnification result in a dim image?

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High power magnification leads to a dim image because it spreads a fixed amount of light over a larger area in the focal plane, resulting in less light per unit area. This phenomenon is similar to pixelation, where the details of an image become less distinct as it is enlarged, causing the information for one pixel to be distributed across multiple pixels. Consequently, the overall brightness and clarity of the image decrease. Understanding this principle is crucial for effective microscopy and imaging techniques. The relationship between magnification and image brightness is a key factor in visual clarity.
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Why does high power magnification result in a dim image?

thanks =)
 
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You're taking some fixed amount of light and spreading it over a very large area in the focal plane. The result is very little light per unit area, or a dim image.

- Warren
 
It is kind of like why images get pixelated when you make them bigger. The information normally used for one pixel, is spread out over several.
 

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