A concave lens always forms a virtual image (for a real object), will it always form a real image for a virtual object? (that is, when rays converge on it)
If yes, why?
If no, why?
If yes, why?
If no, why?
sophiecentaur said:Ask yourself what happens to the rays leaving an object when they pass through a concave lens.
sophiecentaur said:Would they ever be brought together to form a real image?
There's your answer.
sophiecentaur said:btw, what is a "virtual object"? (I missed that when I first read it).
sophiecentaur said:if you have a convex lens, producing a real image and you put a concave lens between the first lens and the image it forms,.
sophiecentaur said:then the resulting (real) image will be formed a bit further away than the original (real) image
-Castiel- said:So again, for a virtual object, will a concave lens Always form real image?
When light rays pass through a concave lens, they spread out and diverge. This causes the image to appear smaller and upright compared to the object. The image is formed behind the lens and can be projected on a screen or observed directly.
A real image is formed when the light rays actually converge and intersect at a point, creating a sharp and focused image. This can be seen by projecting the image onto a screen. A virtual image, on the other hand, is formed by the apparent intersection of the diverging light rays. It appears to be behind the lens and cannot be projected onto a screen.
The distance between the object and concave lens, also known as the object distance, affects the size and location of the image. A larger object distance will result in a smaller and more magnified image, while a shorter object distance will result in a larger and less magnified image.
The focal length of a concave lens is the distance between the lens and the point where the light rays converge. It is a measure of the lens' ability to bend light. A shorter focal length results in a more divergent and wider spread of light rays, creating a larger and less magnified image. A longer focal length results in a smaller and more focused image.
Yes, a concave lens can form a magnified image. However, the image will always be smaller than the object, as the light rays diverge and spread out rather than converging. The amount of magnification depends on the object distance, lens curvature, and focal length of the lens.