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What is a Virtual Image? (Optics - Class 10)

Every morning when you look in the bathroom mirror, you see yourself โ€” but is that image real? Can you project it onto a wall? In Class 10 Physics (Light), understanding the difference between Virtual and Real images is fundamental.

Question (Click to Flip)

Is the image formed by a concave lens real or virtual?

Answer

A concave (diverging) lens always forms a virtual, erect, and diminished image, regardless of where the object is placed.

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Key Facts

Virtual images are not 'fake' โ€” your eye perceives them as absolutely real. The word 'virtual' simply means the light rays don't actually converge there โ€” it's the brain that completes the picture!

Definition of Virtual Image

A Virtual Image is an image formed by a mirror or lens where the reflected/refracted rays do not actually meet at the image point โ€” they only appear to diverge from that point when extended backwards.

  • A virtual image cannot be projected onto a screen.
  • It is always formed on the same side as the object (for mirrors) or the same side as the incoming light (for lenses).

Examples of Virtual Images

  1. Plane Mirror: The image you see in a flat mirror is always virtual, erect (right-side up), and the same size as you.
  2. Convex Mirror: Always forms a virtual, erect, and diminished (smaller) image โ€” used in vehicle rear-view mirrors.
  3. Concave Mirror (when object is between F and P): Forms a virtual, erect, and magnified image โ€” used in makeup mirrors and shaving mirrors.

Real Image vs Virtual Image

PropertyReal ImageVirtual Image
Ray convergenceRays actually meetRays only appear to meet
Can be projected?YesNo
OrientationInvertedErect
ExampleCinema projectorBathroom mirror

Questions and Answers

Is the image formed by a concave lens real or virtual?+

A concave (diverging) lens **always** forms a virtual, erect, and diminished image, regardless of where the object is placed.

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