Real and Virtual Images


 
 
Concept Explanation
 

Real and Virtual Images

When we look into a mirror, we see exactly a reflection of our face, hence known as image of our face. In this case, our face is the object and what we see in the mirror is its image. The image of our face appears to be situated behind the mirror. There are two types of images

  • A Real Image
  • A Virtual Image
  • Real Image: 

    The images that can be formed on the screen are called real images. They are formed by actual intersection of light rays. When the light coming from an object actually meet at a point after reflection form the mirror, then it results in the formation of a real image. A real image is formed when rays converge.

    Virtual Image: 

    The images that cannot be taken on the screen are called virtual images. They are formed by the apparent intersection of light rays. When the light rays coming from an object appear to meet after reflection from the mirror, then it results in the formation of virtual image. It is not possible to form a virtual image on the screen because light rays actually do not pass the screen or cannot be received on  a screen. a virtual image occurs where rays only appear to diverge.

    Difference Between a Real and a Virtual Image:

    S. No.

    Real image

    Virtual image

    1. Real images can be formed on the screen Virtual images can not be formed on the screen
    2. Real images are formed by actual intersection of light rays Virtual Images are formed by apparent intersection of light rays
    3. Real images occurs where rays converge at a point. Virtual Images occurs where rays only appear to diverge.
    4. Real images are formed reflection from a concave mirror Virtual images are formed after reflection from a convex mirror and plane mirror.
    5 Real images are inverted Virtual Images are erect.
    6. Convex Lens form real images. Concave lens forms virtual image.
    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are correct :

    (a) Real images can be formed on the screen.

    (b) Virtual images can not be formed on the screen.

    (c) Real images are formed by actual intersection of light rays.

    Right Option : D
    View Explanation
    Explanation
    Question : 2

    The images that can be formed on the screen are called _________________ images.

    Right Option : A
    View Explanation
    Explanation
    Question : 3

    When the light coming from an object actually meet at a point after reflection form the mirror, then it results in the formation of a _______________ image.

    Right Option : A
    View Explanation
    Explanation
     
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