What are real and virtual images? How will you find out whether an image is real or virtual? Can a virtual image be obtained on a screen?

Explanation

(i) If the reflected or refracted rays from the lens . actually meet at a point when light rays from the object are incident on it, then the image formed is Real and it can be seen on a screen.
If the reflected or refracted rays from the lens appear to meet at a point when light rays from the object are incident on it, then the image formed is called virtual.
(ii) If the images are inverted then they are real and if they are erect then they are virtual.
(iii) Virtual images cannot be obtained on a screen.