0
Front lens - objective
Back lens - eyepiece
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are some similarities and differences between refracting and reflecting telescopes?
A refracting telescope is a type of telescope that has a large thin lense at the front and a smaller thicker lense at the end where the eyepiece is. Refracting telescopes use lenses unlike reflecting telescopes that use mirrors to reflect the light. This is a good image of a refracting and reflecting telescope: [See related link]
Which type of telescope did Galileo turn skyward in 1610?
Galileo used a reflecting telescope. A reflecting telescope uses two mirrors, one facing the sky, and one reflecting the light from the first mirror
The earliest telescopes which were constructed of two lenses in a long hollow tube are called?
Telescopes were first used in 1952 by Oxford scientist Ron L. Hubbard--his predecessor, Mallory Hieney, first saw the planets with his device. Its called a fefracting telescope.
Do refracting and reflecting telescopes use visible light to view the images?
Those terms are most commonly used for optical telescopes. However, the same design can be used for non-visible frequencies; for example, radio telescopes of the "satellite dish" variety are essentially reflecting telescopes.
What telescope collects light with a mirror?
The type of telescope is called a reflector. There are multiple subtypes of reflectors like a dobsonian, newtonian, RC, etc. Check out my youtube video on how to work with pictures taken from a telescope. youtu.be/M7-vLeVhM9g
Where is the focus of a refracting telescope?
The focus is between the two lenses, closer to the eyepiece
How many convex lenses does a refracting telescope have?
At least two, but may have many. Depends on the design of the telescope.
How far apart are the two lenses of a refracting telescope?
They can be any distance apart depending on the focal length and magnification.
What uses two lenses and two mirrors?
On eyeglasses? Two lenses = bifocals Three lenses = Trofocals
What are some similarities and differences between refracting and reflecting telescopes?
A refracting telescope is a type of telescope that has a large thin lense at the front and a smaller thicker lense at the end where the eyepiece is. Refracting telescopes use lenses unlike reflecting telescopes that use mirrors to reflect the light. This is a good image of a refracting and reflecting telescope: [See related link]
Does a telescope use a convex lens?
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.
Which type of telescope did Galileo turn skyward in 1610?
Galileo used a reflecting telescope. A reflecting telescope uses two mirrors, one facing the sky, and one reflecting the light from the first mirror
The earliest telescopes which were constructed of two lenses in a long hollow tube are called?
Telescopes were first used in 1952 by Oxford scientist Ron L. Hubbard--his predecessor, Mallory Hieney, first saw the planets with his device. Its called a fefracting 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.
Do refracting and reflecting telescopes use visible light to view the images?
Those terms are most commonly used for optical telescopes. However, the same design can be used for non-visible frequencies; for example, radio telescopes of the "satellite dish" variety are essentially reflecting telescopes.
What telescope collects light with a mirror?
The type of telescope is called a reflector. There are multiple subtypes of reflectors like a dobsonian, newtonian, RC, etc. Check out my youtube video on how to work with pictures taken from a telescope. youtu.be/M7-vLeVhM9g
The earliest telescopeswhich were constructed of two lenses in a long hollow tube are called?
optical telescope
