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Concave means bulging inward - reflecting telescopes use this sort of mirror. The first telescope designed to use one was invented by Isaac newton and they are therefore called "Newtonian" telescopes.
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What type of lens does a reflecting telescope use?
A reflecting telescope only uses lenses in the eyepiece. Light is picked up and an image produced by using a concave parabolic mirror.
What kind of telescope uses both a reflecting mirror and a refracting lens to produce wide angle photos of the sky?
A reflecting telescope has both magnifying mirrors and lenses to focus the image on the eyepiece. A refracting telescope uses only lenses to magnify and focus. A reflecting telescope can be much smaller, because the light can travel through the barrel of the telescope several times, being magnified with each reflection. This is why most large modern telescopes are reflectors.
What is a reflector that uses a secondary mirror to reflect light to the side of the telescope called?
The small mirror is a plane one reflecting a bundle of rays to the side of the main tube. That is a Newtonian reflector.
What are some telescopes names?
The two types are refractor and reflector. In a refracting telescope, the light comes in THROUGH a magnifying LENS where it is REFRACTED (bent) to focus the light into an objective lens. In a reflecting telescope, the light BOUNCES OFF a curved magnifying MIRROR , and then reflected again on a secondary mirror to direct the light into an objective lens. Among the advantages of a reflecting telescope are that in a refracting lens, the thickness of the lens can absorb some of the light, while a mirror reflects all of the light. Additionally, a reflecting telescope can "fold" the telescope into a much more compact instrument, which is essential with especially large devices. A large refracting telescope would be enormously heavy and cumbersome.
Which type of telescope uses a convex lens to increase the size of the image being viewed?
refracting
What type of telescopes uses a concave mirror?
A reflecting 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 kind of telescope uses a mirrio?
all telescopes use a mirror.
Which type of telescope uses concave mirrors to increase the size of the image being viewed?
Refracting
What type of lens does a reflecting telescope use?
A reflecting telescope only uses lenses in the eyepiece. Light is picked up and an image produced by using a concave parabolic mirror.
What kind of telescope uses a single large parabolic mirror to gather and focus starlight?
A single-mirror reflector.
List two uses for concave lens?
Both concave and convex lenses are used in glasses; A microscope, like a reflecting telescope, uses a concave mirror, a plane mirror, and a convex lens; A refracting telescope uses two convex lenses to magnify images in the sky; binoculars use concave lenses to improve detail.
Does a flashlight use a concave mirror or convex mirror?
It uses a concave mirror in order for the light to be concentrated to point forward.
Which type of curved mirror uses it inside as the reflecting surface?
a concave mirror
Which optical instrument uses a large concave mirror a plane mirror and a convex lens to gather light focus and enlarge an image?
Astronomical telescopes use a large concave mirror, a plane mirror, and a convex lens in their design. The concave mirror gathers light, the plane mirror reflects it to a more convenient viewing location, and the convex lens magnifies and focuses the image for observation.
Which type of telescope uses a mirror to gather light?
A reflecting telescope.
Why concave mirror is used for dental treatment?
concave mirror shows the image real and magnified........when a dentist uses a concave mirror, he/she places the mirror such that the teeth falls on the focus of the mirror due to which the wound can be easily detected and can be treated as per its treatment
