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What is the advantage of using a concave mirror in the place of convex lens as objective in a telescope?
-- The lens must be transparent. The mirror must only be solid.
-- The lens must be perfect through and through. The mirror only needs
a perfect surface.
-- The lens needs two perfectly shaped surfaces. The mirror needs only one.
-- The lens can be supported only around its edge. The mirror can be supported at
as many points across its back as desired.
What else can I help you with?
Is a reflecting telescope cancave or convex?
The telescope is cylindrical. Its primary mirror is concave.
How long did it take Galileo to make the first telescope?
Galileo created his first telescope in around two months in 1609. It was a refracting telescope with a convex objective lens and a concave eyepiece. This instrument revolutionized astronomy and allowed Galileo to make groundbreaking astronomical observations.
What year was thee telescope invented?
The telescope was invented in 1608 by Hans Lippershey, a Dutch eyeglass maker. This early version of the telescope consisted of a convex objective lens and a concave eyepiece lens. The invention of the telescope revolutionized astronomy by allowing astronomers to observe objects in the sky with greater detail and precision.
Where did Galileo invent the telescope?
Galileo didn't actually invent the telescope, though he was one of the first to use it for astronomical observations. At the time he constructed his first telescopes, he was teaching at the University of Padua in Italy.
Why do reflecting telescopes use con cave mirrors and not convex mirrors?
Convex mirrors spread and not focus light. They do the opposite of concentrating and magnifying. They are the mirror image of what a concave telescope is and does. Pun intended.
Are objective lenses concave or convex?
Objective lenses are convex lenses.
Is a reflecting telescope cancave or convex?
The telescope is cylindrical. Its primary mirror is concave.
Does a telescope use a convex lens?
Yes, a telescope typically uses convex lenses to gather and focus light. The objective lens, which is usually convex, collects and refracts light to create an image that can be magnified by the eyepiece lens.
How long did it take Galileo to make the first telescope?
Galileo created his first telescope in around two months in 1609. It was a refracting telescope with a convex objective lens and a concave eyepiece. This instrument revolutionized astronomy and allowed Galileo to make groundbreaking astronomical observations.
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.
What is the opposite of Convex?
The opposite of convex is concave. Concave shapes have an inward curve, while convex shapes have an outward curve.
Is a hen decagon concave or convex?
It can be convex or concave.
What year was thee telescope invented?
The telescope was invented in 1608 by Hans Lippershey, a Dutch eyeglass maker. This early version of the telescope consisted of a convex objective lens and a concave eyepiece lens. The invention of the telescope revolutionized astronomy by allowing astronomers to observe objects in the sky with greater detail and precision.
What are two type of lenses?
convex and concave
What is the use of reflecting telescope?
a. concave mirror b. a convex lens c. a plane mirror or d. all the above.
What are the types of lenses and mirrors?
1. plain mirror2. concave mirror 4. concave lens3.convex mirror 5.convex lens
Is concave curved in or out?
concave=in convex=out
