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Concave and convex lenses both enlarge an object to a certain extend.
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∙ 12y ago
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How many lenses are used to focus an object?
Three
An instrument that uses glass lenses to magnify an object?
a microscope mostly used for to investigate stars and planets in the outer space
What is a condenser lens used for?
A Condenser Lens is a device made up of a series of lenses and sometimes a mirror, that is used to gather and 'focus' light to direct it onto an object through a different projection lens.
What type of lenses are used when photographing people's faces from a distance?
You would ask for a telephoto lens in a shop. Scientifically they are convex lenses with longer focal lengths than a normal lens. A normal lens has a focal length between 21 and 35 mm, whereas the medium telephoto lenses used for portraiture have focal lengths between 70 and 135 mm.
Which type of mirrors are used to give an erect enlarged image of an object?
concave mirror
Does a camera have 2 sets of lenses that are used to form and enlarge an image?
Some cameras will have two sets of lenses, such as ones with a telephoto lens. These use two lenses to focus on and enlarge images.
How many lenses are used to focus an object?
Three
What is a hand lenses?
Its a tool used to magnify an object
What is the purpose for the microscope?
Objective of a microscope is the element that gathers light from the object being observed and focuses light rays to produce a real image. Objectives can be single lenses or mirrors, or combination 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.
How two converging lenses are used to view an object on a compound microscope?
The ocular and objectives
What are the type of lenses used by watch repairers?
convex lens
What type of lens used in telescope?
Most telescopes use refractor lenses. Sometime a telescope will use reflector lenses.
What kind of lenses are used on CCTV cameras?
The type of lenses that are used on CCTV cameras are lenses that are adjustable. They must be able to change a subject's size on the screen. They must have focal view and depth of view.
What part reflects the microscope light?
Mirror - It is used to reflect light through the object and lenses of the eye.
What is the importance of number in enlarging objects?
We need know the scale by which the object needs to enlarged. For that purpose numbers are used and also numbers provide an accurate mode to enlarge the object.
What a projector is used for?
This type of projector is used to enlarge digital images from many different sources on a large surface or screen.
What is the objective lens?
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.
