What are the rules to form image of an object
Concave lens ? form the images of an object when
it is moved from Infinity to the lens
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Explanation:
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12th
Physics
Ray Optics and Optical Instruments
Combination of Mirror and Lenses
The image of an object form...
PHYSICS
The image of an object formed by a concave lens is:
A
Image formed is Virtual, upright and diminished see ray diagrams-
1. Formation of image by a concave lens when the object is placed at infinity
When an object is placed at infinity, the two rays AO and BD running parallel to the principal axis get refracted at point O and D respectively and get diverged along the directions OX and DY respectively. These diverged rays i.e. OX and DY appears to intersect each other at the principal focus of the concave lens after extending back by dotted lines. Therefore, in case of concave lens when the object is placed at infinity the image is formed at the principal focus, highly diminished (point sized), virtual and erect.