Question

distinguish between real and virtual images

Answer 1

in real image we can see the object only by using a screen and in virtual we can see directly.real-image will be inverted and in virtual image will be erect.real image will be formed by joining of 2 reflected rays and virtual will be formed by elongation of the reflected rays

Answer 2

real image can be obtained on screen where as virtual image cannot
real image is formed when light rays meet at a point but virtual images don't