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What is an image called that reflects light through a focal point?
Wiki User
∙ 12y ago
An image doesn't reflect light.
An image that forms in a focal plane ... and could be seen if there's
a piece of tissue or a puff of smoke at that place ... is a "real" image.
Wiki User
∙ 12y ago
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When an object is inside the focal point of a concave mirror what kind of image always results?
An upright image, which is called a virtual image. If the focal point was outside of a concave mirror, then it would be a real image, which is inverted.
Where will be the image formed if the object is kept at the Focal in covex lens?
The image will be formed at infinite distance as parallel ray come out of the lens after refraction through lens.
What creates an image that is reflected through a focal point?
a convex lens
How can you tell what the focal length is for a lens?
Easy way: Use it to form an image of the sun or moon, and measure the distance of the image behind the lens. When the object is at infinity, the distance between the lens and the image is the focal length of the lens.
What is the relationship between object distance image distance and focal length of a concave mirror?
Sum of reciprocal of object distance and reciprocal of image distance gives the reciprocal of focal length
What is the relationship of focal spot blur and geometric unsharpness?
The finite size of the focal spot results in divergence of the beam beyond the magnified image of the object (creating an area called the penumbra). This is termed focal spot or geometric blurring and results in reduced image resolution. In the absence of magnification (that is, the image is adjacent to the receptor) there is no focal spot blurring.
What happens if you decrease a telescopes eyepiece focal length?
The magnification of the telescope image is(focal length of the objective) divided by (focal length of the eyepiece).The focal length of the objective is fixed.Decreasing the focal length of the eyepiece increases the magnification of the image.(But it also makes the image dimmer.)
When an object is inside the focal point of a concave mirror what kind of image always results?
An upright image, which is called a virtual image. If the focal point was outside of a concave mirror, then it would be a real image, which is inverted.
What will decreasing a telescope's eyepiece focal length?
The magnification of the telescope image is(focal length of the objective) divided by (focal length of the eyepiece).The focal length of the objective is fixed.Decreasing the focal length of the eyepiece increases the magnification of the image.(But it also makes the image dimmer.)
Where will be the image formed if the object is kept at the Focal in covex lens?
The image will be formed at infinite distance as parallel ray come out of the lens after refraction through lens.
What creates an image that is reflected through a focal point?
a convex lens
What is it called when a convex lens focuses light from an image at the focal point?
usually it starts burning something that it is in contact with but im not sure what its called
How does a telescope magnify incomming radiation?
The telescope has an object lens at the top, which is a large lens with a long focal length. It produces an inverted image of a distant obect at the focal point. The eyepiece is a smaller lens, and you look through the eyepice at the image formed by the object lens. The image is formed in space, it does not need a screen, and you can see it with the eyepiece. The ratio of the focal lengths of the two lenses is the linear magnification.
Is a a convex lens focus light to form an image at the focal point?
Yes, it does focus light to form an image at the focal point and hence it is used in spectacles.
How do you find how far an image is formed from the lens if you have the distance from the lens to the object and the focal length how do you solve for distance from image that is formed?
Here's the equation you want. It's called the "Lensmaker's Formula".1/i + 1/o = 1/fi = image distance from the lenso = object distance from the lensf = focal length of the lens
What kind of shape is the primary mirror of a reflecting telescope?
The name of this type of instrument is derived from the fact that the primary mirror reflects the light back to a focus instead of refracting it. The primary mirror usually has a concave spherical or parabolic shape, and, as it reflects the light, it inverts the image at the focal plane.
What happens to your image in a plane mirror?
your image reflects back
