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Why is the focal points of a convex lens is real and concave is virtual?
Wiki User
∙ 11y ago
The convex mirror diverges light rays, so if you draw the reflected rays in front of the mirror and continue drawing them at the back of the mirror the virtual light rays (at the back of the mirror) will join. This point is called a Virtual Focus Point.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoA convex lens converges light to a point of focus.
A concave lens diverges the light so the focal point is virtual, the light is defocused or spread out further
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Why is the focal point of a convex lens real and that of a concave lens virtual?
because in a convex lens rays join at a common point after refrection but in case of a concave lens they appears to come from a common point.
What is the difference between the focus of concave and convex mirror?
the focal point of a concave mirror is positive while a convex is negative
Explain the difference between the concave mirror and convex mirror?
A convex mirror bulges out. A concave mirror curves inward.For a convex mirror, light rays are reflected to meet at a point, while, for a concave mirror, light rays seem to be reflected from a point. If the incident rays were paraxial, the reflected rays are reflected to meet at, or appear to be reflected to a point referred to as the focal point of the lens. For a convex mirror, the focal point is real, while, that of a concave lens is virtual.
What creates an image that is reflected through a focal point?
a convex lens
What are the three kinds of mirrors and what kind of images do they reflect?
mirrorsconcave (converging) -->)-virtual: enlarged upright image when DoDo>F-real: same size inverted image when Do=C-real: diminished (smaller) inverted image when Do>Cconvex (diverging) -->(-virtual: diminished when Do is anywhereplane (flat) -->l-same size virtualmeanings of lingoDi is distance of image from mirrorDo is distance of object mirrorC is center of curvatureF is focal point "this is between the center of curvature and mirror
Why is a focal point of a convex lens real and that of a concave lens virtual?
because in a convex lens rays join at a common point after refrection but in case of a concave lens they appears to come from a common point.
Why is the focal point of a convex lens real and that of a concave lens virtual?
because in a convex lens rays join at a common point after refrection but in case of a concave lens they appears to come from a common point.
What kind of lens can be used to produce a virtual image?
Convex lens produces both real and virtual images. But concave lens produces only virtual images for real objects. If object is virtual then real image could be produced by a concave lens.
What is the difference between the focus of concave and convex mirror?
the focal point of a concave mirror is positive while a convex is negative
Explain the difference between the concave mirror and convex mirror?
A convex mirror bulges out. A concave mirror curves inward.For a convex mirror, light rays are reflected to meet at a point, while, for a concave mirror, light rays seem to be reflected from a point. If the incident rays were paraxial, the reflected rays are reflected to meet at, or appear to be reflected to a point referred to as the focal point of the lens. For a convex mirror, the focal point is real, while, that of a concave lens is virtual.
What creates an image that is reflected through a focal point?
a convex lens
What is the positive lens is the same as?
The focal point F and focal length f of a positive (convex) lens, a negative (concave) lens, a concave mirror, and a convex mirror. The focal length of an optical system is a measure of how strongly the system converges or diverges light.
If Jane is myopic. Will she need concave or convex lenses explain?
Concave. With myopia, the focal point of the eye is in front of the retina. Concave lenses increase the distance of the focal point so that it lies on the surface of the retina.
What are the three kinds of mirrors and what kind of images do they reflect?
mirrorsconcave (converging) -->)-virtual: enlarged upright image when DoDo>F-real: same size inverted image when Do=C-real: diminished (smaller) inverted image when Do>Cconvex (diverging) -->(-virtual: diminished when Do is anywhereplane (flat) -->l-same size virtualmeanings of lingoDi is distance of image from mirrorDo is distance of object mirrorC is center of curvatureF is focal point "this is between the center of curvature and mirror
The distance between a mirror and its focal point is called the?
Focal length, positive number with a concave mirror, negative for a convex mirror.
Which lens and which mirror forms a visible focal point?
A concave lens and a convex lens are what you're looking for. / | ∙ \
What are the types of lenses?
There are two types of lenses - fixed focal and zoom lenses.
