what is vitural image? give one situation where vitural image formed
Answers
Answer:
In optics, an image is defined as the collection of focus points of light rays coming from an object. A real image is the collection of focus points actually made by converging rays, while a virtual image is the collection of focus points made by extensions of diverging rays. In other words, a virtual image is found by tracing real rays that emerge from an optical device (lens, mirror, or some combination) backward to perceived or apparent origins of ray divergences. In diagrams of optical systems, virtual rays are conventionally represented by dotted lines.
Explanation:
Answer:
A virtual image is formed when reflected rays appear to meet. Such images cannot be obtained on screen. Plane mirrors, convex mirror and concave lens always forms virtual image.
Virtual images are formed by diverging lenses or by placing an object inside the focal length of a converging lens. The ray-tracing exercise is repeated for the case of a virtual image. ... Virtual images can also be produced by converging lenses when the object is placed inside the focal length.
The best example of a virtual image is your reflection in the mirror. Real images are produced by intersecting rays while virtual images are produced by diverging rays. Real images can be projected on a screen while virtual ones cannot. Real images are formed by two opposite lens, concave and convex.