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The thick lens equation is used in optics to calculate the focal length of a lens that is not thin, taking into account the thickness of the lens itself.
The lens focal length formula used to calculate the focal length of a camera lens is: Focal Length (Distance between lens and image sensor) / (1 (Distance between lens and object) / (Distance between lens and object))
== == It is used to magnify/ or make things appear closer?to magnify small objects
A magnifying glass typically uses a convex lens. This type of lens converges light rays to create a magnified image when placed close to an object.
A bifocal lens is commonly used as a reading lens, as it has two distinct areas of focus - one for close-up reading and one for distance vision. This type of lens is helpful for individuals who have difficulty with near vision due to presbyopia.
when theodolite is fixed with analytic lens then it is called tachometer, without the analytic lens the instrument would be called as constant zero.
The ocular lens used for nearsightedness is known as a diverging lens. It is also known as a concave lens.
bioconvex lens
A tacheometer is a type of theodolite used for rapid measurements. It determines the distance to the target electronically or electro-optically. Tacheometry is a system of rapid surveying that does not use chain or tape. There are times when measuring with a theodolite and measuring tape can be dangerous or impossible.A theodolite is an older surveying tool. Those were just precision optical devices used to compute angles between known fixed points, and they required using trigonometry to get the final values. However, there are modern versions of theodolites called Total Stations that are more convenient to use than even a tacheometer. These will cost you about $50,000 a piece or so.Please note that the question asks about a tacheometer (or tachymeter) which is a surveying tool, not a tachometer which measures engine speed.
? to protect the lens i assume.
A convex lens.
Fresnel lens
A telescopic lens.
The type of lense is a convex lense
The thick lens equation is used in optics to calculate the focal length of a lens that is not thin, taking into account the thickness of the lens itself.
double convex
They Used a Convex Lens