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In an optical instrument, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be single lenses or mirrors, or combinations of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoObjective lens on a microscope collects the light emerging from the sample and focuses it into the objective turret. Its primary role is to increase the magnification used for viewing. usually, there are three or four objective lenses on a microscope,
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∙ 15y agothe lens or system of lenses in a telescope or microscope that is nearest the object being viewed
Wiki User
∙ 14y agoThe objective lenses are used to view an object at diiferent magnifications.
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What magnifies tiny objects?
The high-power objective lens; which magnifies the specimen about 40x (depending on the microscope) and the low-power objective lens; which magnifies the object about 10x. If you arn't familiar with the given terms then look them up, there are probably answers on this website.
What is the difference between a dry and wet objective lens?
one is dry one is wet
Why is the low power objective placed in position when the microscope is stored or carried?
The shortest lens is the least likely to be "smashed" against a slide. =)Yeah, and that's the lens that you should start on when you get it out! Good job though, previous writer! xDTo prevent 100x lens from scratching with the sample pad.
Rays of light incident on lens and parallel to the principal axis of the lens converge?
This depends on the type of lens. If it is a convex lens then they converge at the focus on the other side of the lens. If it is a concave lens, then they diverge and appear to be coming from the focus present on the same side of the lens as the incident ray.
Convex lens is thicker than?
The top of the convex lens is thicker than the bottom.
What is ocular lens and objective lens?
The ocular is the upper lens and objective is the lower lens
What is a objective lens?
low power objective lens
What does the objective lens in a microscope do?
The objective lens in a microscope helps to magnify the object being viewed on the slide. The objective lens can be rotated to change the magnification of the lens and yield a different view.
What objective lens is the longest?
The lens with the greatest (positive) curvature. The lens with the highest diopter.
When moving from a lower objective lens to a higher objective lens why does is the image lost?
Because during movement of lens there is no slide below objective .
Is the low power objective lens the shortest objective lens?
scanning objective
Which objective is a high dry lens?
The objective lens 40X(with the blue band) is the high dry lens.
Difference between ocular and objective lens?
the ocular lens sits higher up, closer to your eye. the objective lens are in the objective tube below the ocular lens
What is the lens closest to the lens microscope?
The objective lens
Which lens of a compound microscope is closest to the objective being examined?
objective lens
What is the another name of objective lens?
There is no other name for the objective lens. However, the eyepiece is also called the ocular lens.
Is the objective lens and a microscope also called the eyepiece?
No, the objective lens of a microscope, a telescope, or a camera is at the end nearest the object being observed - that is why it is named the objective lens.
