what is mean lens ?????@@@
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Answer:
a piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope).
the light-gathering device of a camera, typically containing a group of compound lenses.
ANATOMY
short for crystalline
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The relation between distance of object, distance of image and focal length for a lens is called lens formula.
Step-by-step explanation:
Where, v is the distance of image, u is the distance of object, and f is the focal length of lens. Distance of object and image is measure from the optical centre of the lens.
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