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When is the image said to be real or virtual image?
An image is called real if the light rays coming from a point(point on object) meet at a point after reflection or refraction. An image is virtual if the light rays do not actually meet after reflection or refraction. These rays appear to come from a point which is the point where we say virtual image is formed.
How does an image form on lenses?
Images are formed when rays of light meet. If rays are refracted by different amounts as they pass through different parts of the lens, they may be brought to a focus - or meet and pass through one point. This is where the image is formed.
How are virtual images and real images different?
A virtual image is a copy of an object formed at the location from which the light rays appear to come. Whereas a real image is a copy of an object formed at the point where the light rays actually meet.
An image formed when rays actually meet is called?
When light rays come together, they converge.
How does a lens create an image?
A lens forms an image when all the rays of light meet in the focal point.
How do you know what the vertex of an angle is?
An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.
What is real image?
A real image is formed when the reflected or refracted beams of light meet directly. lxExl
Why it is impossible to form real images with plane mirrors?
A real image is formed when light rays coming from a point* after reflection meet at a point. Light rays coming from a point are always diverging, so after reflection by a plane mirror also they remain diverging and never meet. We need to use an optical device that can converge the rays to get a real image. * Its strictly a point not an extended object.
When two line segment meet at a point an is formed and the point where is called the?
An angle is formed at the vertex
Why a convex mirror and a concave lens can never produce a real image?
Because the light rays spread out & never meet the focal point
Distinguish between a virtual image and a real image?
a real image is formed when the reflected or refracted beams of light meet directly; in case of a virtual image, direct meeting does not take place.a real image can be formed on a screen but not the virtual image.when we use flat-surfaced mirrors, only virtual images are formed.
What is a meaning of focus?
A point in which the rays of light meet, after being reflected or refrcted, and at which the image is formed; as, the focus of a lens or mirror., A point so related to a conic section and certain straight line called the directrix that the ratio of the distace between any point of the curve and the focus to the distance of the same point from the directrix is constant., A central point; a point of concentration., To bring to a focus; to focalize; as, to focus a camera.
