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How much more light can a telescope with an objective that is 31 inches in diameter gather when compared to a telescope that is 19 inches in diameter Enter the number with on units?
Wiki User
∙ 12y ago
A nineteen inch objective gathers a bit over 4,000 times as much light as the unaided human eye. A 31 inch objective gathers about 10,670 times as much light as the human eye, or a little more than two-and-a-half times the nineteen inch objective.
======================> 2.662 times
Wiki User
∙ 12y ago
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Compare the functions of the objective lens in a telescope and a microscope?
The objective lens in a microscope is mainly used to magnify an object. In a telescope, the objective lens is mainly used to gather light.
What is meant by the size of a telescope?
The size of a telescope almost invariably refers to the size of it's objective lens, or mirror. It translates to how much light the telescope can gather, not "how big it can magnify", which is very secondary.
What does the light gathering ability of a telescope depend on?
A refracting telescope is a type of optical telescope. It was used in astronomical telescopes and spy glasses. Objective lens are used to produce the image.
This telescope uses mirrors to gather and focus light energy?
Newtonian telescope
What is the name of the telescope that uses convex lenses to gather and focus light?
Refracting telescope.
How much more light can a telescope with an objective that is 36 inches in diameter gather when compared to a telescope that is 26 inches in diameter?
About 1.92 times as much. (rounded) The so-called "light gathering power" varies in proportion to the area of the objective lens or mirror, which in turn varies as the square of its diameter. (36 inches/26 inches)2 = 1.9172 = about 2.83 dB
How much more light would a 2-meter-diameter telescope gather compared with one that is 50 cm in diameter?
-48
Compare the functions of the objective lens in a telescope and a microscope?
The objective lens in a microscope is mainly used to magnify an object. In a telescope, the objective lens is mainly used to gather light.
The light gathering power of a telescope increases as the objective increases?
Yes, light gathering power is proportional to the area of the objective. The more light a telescope can gather, the better the telescope will be able to allow the user to see.
What is meant by the size of a telescope?
The size of a telescope almost invariably refers to the size of it's objective lens, or mirror. It translates to how much light the telescope can gather, not "how big it can magnify", which is very secondary.
What does the light gathering ability of a telescope depend on?
A refracting telescope is a type of optical telescope. It was used in astronomical telescopes and spy glasses. Objective lens are used to produce the image.
Which type of telescope uses a mirror to gather light?
A reflecting telescope.
What telescope doesn't use mirrors or lenses to gather light?
A radio telescope.
This telescope uses mirrors to gather and focus light energy?
Newtonian telescope
Why will a big reflector make more distant stars easier to see?
Unfortunately, no matter how large of a telescope you have, stars will always appear as pinpoints of light. Even the largest professional telescopes are not able to resolve stars as discs. However, if it's a dim star that one is trying to detect, it is true that a telescope with a larger diameter main objective (a mirror in the case of a reflector or a lens in the case of a refractor) will produce a brighter image of the star than one with a smaller main objective. Larger lenses and mirrors gather more light. The light-gathering ability of a telescope depends on the area of its main objective. Since the area of a circular objective varies as the radius squared (area = pi * radius^2), doubling the radius of the objective will quadruple the area of the objective, and therefore the light-gathering ability.
What is the name of the telescope that uses convex lenses to gather and focus light?
Refracting telescope.
Does a reflecting telescope gather light with a lens or a mirror?
reflecting telescope gathers light from mirror
