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Reflecting telescopes don't use lenses - they use mirrors (hence 'reflecting'). Light goes in the top, hits a concave mirror at the bottom of the tube which makes the light converge when it is reflected, then bounces back up to the top where it hits a smaller secondary mirror, where it is directed down the eyepiece.
Do you mean refracting telescopes? If so then these do use lenses, the amount depends on the telescope. The most simple form has an objective lens which focuses the light, and then an eyepiece which has a lens in it to magnify the image. The objective lens is convex on the side pointing out of the telescope, and is flat on the other side.
What else can I help you with?
What is a convex lens that focuses light to form an image at the focal point?
A convex lens that focuses light to form an image at the focal point is known as a converging lens. This type of lens causes parallel light rays to converge and meet at a single point called the focal point, creating a real image.
Is the human eye has a double convex or a plano convex lens?
The human eye has a double convex lens in the cornea (outermost layer) and a bi-convex lens in the crystalline lens inside the eye.
Do flashlights have convex or concave lens?
Flashlights typically have a convex lens. A convex lens is thicker in the middle and thinner at the edges, which helps to converge the light rays and create a focused beam.
What tool has a convex lens?
A magnifying glass is a tool that has a convex lens. The convex shape of the lens allows it to magnify objects when they are viewed through it.
Is a magnifying lens concave or convex in shape?
A magnifying lens is typically convex in shape.
Does light pass through the convex lens in a reflector telescope?
yes
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.
The type of telescope uses convex lenses to increase the size of the image viewed?
According to scientists, the refracting telescope uses a convex lens which increases the size of an image. The most common use of this telescope is for viewing solar system planets such as Jupiter and Mars.
What kind of lens does a projector use?
projector have concave or convex
To magnify an object would you use a convex lens or a concave lens?
You would use a convex lens.
What is the use of reflecting telescope?
a. concave mirror b. a convex lens c. a plane mirror or d. all the above.
What type of lens use in microscope?
Most lenses used to view smaller things is a convex: Telescope, microscope, binoculars, etc.
How do you use convex in a sentence?
The other end of the lens housed a convex lens.
What type of lens does the watch repairer use is it convex or concave?
Convex Lens
What tool besides a telescope in a science lab uses two convex lens?
Microscope
Which type of telescope uses a convex lens to increase the size of the image being viewed?
refracting
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.
