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Why is the focal point of a convex lens real and that of a concave lens virtual?
Wiki User
∙ 14y ago
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.
Wiki User
∙ 14y ago
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Why is the focal points of a convex lens is real and concave is virtual?
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.
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 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
What creates an image that is reflected through a focal point?
a convex lens
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.
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 points of a convex lens is real and concave is virtual?
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.
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 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
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 creates an image that is reflected through a focal point?
a convex lens
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 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.
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. / | ∙ \
Point at which light rays are converged by a convex lens?
Focus (only at the focal point if the incoming rays are all parallel to the axis).
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.
