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-- A refracting telescope must have a lens, otherwise it's not a refracting telescope.
-- A reflecting telescope can be constructed without any lens, but if you intend to
look through it, then you'll use a little lens for the eyepiece.
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∙ 11y ago
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What is a coarse adjustment knob?
The part of a telescope were you adjust the size of the lens
What is the first lens in a refractor called?
The first lens that the light energy passes through on its way through the telescope is called the object lens or the objective. It is the most important and the most expensive part of the telescope. Telescopes are graded by the diameter of the object lens.
What does the simplest optical telescope contain?
It contains an objective lens and a lens in the eyepiece of the telescope.
How are reflecting and retracting telescopes different?
A reflecting telescope is different from a refracting telescope because a reflecting telescope uses a concave lens, a plane mirror, and a convex lens. While a refracting telescope uses two lens.
What is the lens that is the larger lens in a refracting telescope?
The "objective" lens (as opposed to the eyepiece).
What telescope has an eyepiece lens and a mirror?
The telescope described is an optical telescope. If the primary optic is a mirror, it's a reflector, and it the primary optic is a lens, it's a refractor.
Nib is to pen as lens is to what?
Telescope
What is the difference between a refracting telescope and a?
A refracting or refractor telescope is a dioptric telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used in other devices such as binoculars and long or telephoto camera lenses.There are two basic types of telescopes, refractors and reflectors. The part of the telescope that gathers the light, called the objective, determines the type of telescope. A refractor telescope uses a glass lens as its objective. The glass lens is at the front of the telescope and light is bent (refracted) as it passes through the lens. A reflectortelescope uses a mirror as its objective. The mirror is close to the rear of the telescope and light is bounced off (reflected) as it strikes the mirror
What is the name of the large lens at the end of a telescope?
One end of a reflecting telescope is the big hole pointed at the star. The other end of the reflecting telescope has a lens called an eyepiece.
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 does EQ means on a telescope lens?
EQ indicates that the telescope has an Equatorial mount
What do you call a telescope that uses a lens to focus light?
It is called a refracting telescope.
