... located at the point where the lines of the principle rays cross when they are extended (as if drawn by pencil) backwards from the paths they take beyond the lens.
And I said I wouldn't answer homework questions! ;-)
In a simple microscope, a lens magnifies the image of the sample. in a compound microscope, the objective lens magnifies the image (there may be more than one objective lens) and the eyepiece lens enlarges the virtual image (which is typically inverted by the objective lens).
The lens is convex (curved outward). Light entering the lens from the outside is refracted (bent) as it travels through it. This brings the image to a single (focal) point. The distance between the lens and the back of the camera is such that it allows a small image of the photographed scene to be visible (the picture). The image is inverted because of the refraction of light through the lens.
Since black absorbs light instead of reflecting it, the black finish inside of you camera stops stray light from affecting the image formed on the film or digital sensor. This stray light includes light that strikes the lens at an angle where it is not part of the image AND the light that may be reflected off of the film or sensor. The same really occurs with the inside of the eye. The sharpest image will always be produced when stray light is properly controlled.
a upside down image is formed in your camera then flipped around when it is seen by the human eye -Monica Magallon
A telephoto lens would bring a distant image closer.
Cancave lens always gives virtual, erect and diminished image.
The image depends on the distance the object is from the lens.
A converging lens produces a real image on a screen when the object is placed beyond the lens's focal point. The image is inverted and can be larger or smaller, depending on the distance between the object and the lens.
The image produced is a real image if the object is located at infinity and the lens is a convex lens. The produced image can actually be placed on a screen and photographed.
The clearest image produced by a lens is obtained when the lens is properly focused and there is no aberration, distortion, or other optical imperfections. This results in a sharp and clear image with accurate representation of details and minimal blurriness. The clarity of the image is influenced by factors such as the quality of the lens, the aperture setting, and the distance between the lens and the object being photographed.
A diverging lens can only produce a virtual image, because the light passing through a diverging lens never converges to a point. The virtual image produced by a diverging lens is always right-side-up and smaller than the original object. The image and the object viewed are always on the same side of the lens. Diverging lenses are used as viewfinders in cameras.
No, a concave lens can produce both real and virtual images depending on the object location relative to the lens. If the object is located within the focal point of the concave lens, a virtual image will be produced. If the object is located beyond the focal point, a real image will be formed.
The image produced by a convex lens depends upon the object distance from the lens, the focal length of the lens, and the type of object being viewed (real or virtual). The characteristics of the image, such as its size, orientation, and location, are determined by the lens formula and the properties of the convex lens.
The location and size of the image produced by a converging lens are determined by the object distance and the focal length of the lens. The image is formed on the opposite side of the lens as the object when the object is beyond the focal point (real image), and the size of the image depends on the object distance and focal length according to the lens formula.
A converging lens produces a virtual image that is upright and enlarged, while a diverging lens produces a virtual image that is upright and reduced in size. Additionally, the converging lens forms the virtual image on the same side as the object, while the diverging lens forms it on the opposite side.
An image produced by a convex mirror and an image produced by a concave lens are both virtual, erect, and diminished. They both form on the same side as the object and the images appear smaller than the object itself.
An image produced by a lens is formed where all the light rays converge or appear to diverge. This point is known as the focal point or focal plane, depending on the type of lens used.