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Reflecting telescopes are designed to have a curved lens which allows for objects further away to be seen clearer. For this reason astronomers and other individuals that study outer space use reflecting telescopes.
Wiki User
∙ 9y ago
Wiki User
∙ 15y agopretty much any optical device: e.g. camera, light microscope, optical telescope, a mirror, your eyes... etc Reflected by many concave mirrors, then converged to a point the light of the sun produce power in a few solar power stations in the south regions.
Wiki User
∙ 6y agoA reflecting telescope.
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What is a reflecting telescope that used a secondary mirror to send light through a hole in the primary mirror is called?
It is called a Cassegrain. The small convex subreflector is a hyperboloid with one focus at the focus of the main mirror, and the other focus just behind the main mirror where the eyepiece is.
What uses mirrors to focus light from the object being viewed a refracting telescope or a reflecting telescope?
A reflecting telescope uses a curved mirror to concentrate the light from distant stars, and is a very useful technique. There are very clever techniques and technicians, which can produce a mirror perfect over all its area, to within part of the wavelength of light!! The alternative method of using a glass lens, suffers from various difficulties, such as distortion and loss of light. You do not ordinarily consider focus in an astronomical telescope, for all the stellar objects are essentially at infinity.
Which spherical mirror has a virtual focus-concave or convex?
convex
What is a reflecting telescope that uses a secondary mirror to send light through a hole in the primary mirror called?
That is called a Cassegrain. The main mirror is a paraboloid which focusses the light from a star down to a point, then the secondary small mirror is a hyperboloid with one focus that coincides with the focus of the main mirror, and the other focus is behind the main mirror, where the eyepiece is. This arrangement is common in radio telescopes as a way of reducing radio noise picked up from the 'hot' ground which is at approximately 260 degrees Kelvin or more.
How does the refracting telescope work?
It all depends on if the telscope is a refractor, or a reflector. Reflectors have a convex mirror that bends the reflection on to a flat mirror that angles the magnified reflection to the eyepiece. Refractors use to convex lenses that bend the image and light, magnifying the view to the eypiece.
Will an object inside a principal focus be smaller?
No, for a concave mirror the object will become larger. it is virtual the right way up and it is behind the mirror
O What kind of image do you see using a convex mirror?
we see a diminished and virtual image in a convex mirror provided the object is not kept on the focus of the mirror.
How does image change in its size and location as the object comes nearer the concave mirror?
this will depend.
What are the properties of images that a concave mirror can produce?
there is an imaginary point in front of the concave mirror, called the focal point or focus, which is half the length of the radius of the sphere of which the mirror was a part of(radius of curvature). usually an object if seen in between the mirror and focus gets magnified, beyond the focus, it gets inverted and reduced.
Where will the image form when you place an object on the principal axis of a concave mirror at a point between focus and centre of curvature?
If the object is placed on the principal axis of a concave mirror at a point between the focus and centre of curvature the image will form beyond the centre of curvature
Which lens is the second lens that magnifies the object?
The eyepiece of the telescope doesn't magnify the object, but it does magnifythe real image of the object that forms at the focus of the primary lens or mirror.
What is meant by focus of a concave mirror?
the point at which image is formed when light rays come parallel from an object at infinity.
If an object 5 millimeters high is located 15 millimeters in front of a plane mirror How far from the mirror is the image located?
The answer is 15 millimeters behind the mirror, and the distance from the actual object to the image is 30 millimeters. Plane mirrors have a flat focus that places the image as far behind the mirror as you are in front of it.
Where should the object be placed in front of a concave mirror to form a virtual and magnified image?
between the center of curvature and focus
How do you find the virtual focus in a convex mirror?
since the convex mirror is curved outwards the the focus is behind the mirror
What are the characteristics of a concave mirror?
A concave mirror is a converging mirror used in microscopes and telescopes. Characteristics include forming real and inverted and diminished images when an object is placed beyond the center of curvature or real, inverted and enlarged image when the object is placed between the center of curvature and focus.
What is real focus?
When light rays coming from distant object pass through a convex lens or get reflected from the bright surface of a concave mirror,they converge at a certain point.This point is termed as real focus.
