Refraction of Light Class 10

Image Formation in Lenses Using Ray Diagrams

• Ray diagram helps us to study the nature, position and relative size of the image formed by lenses.
• For drawing ray diagrams we first consider how light rays falling on both concave and convex lens in three different ways get refracted.
• First consider the case for convex lens
  
• Secondly consider the case for concave lens
  


• The ray diagrams for the image formation in a convex lens for a few positions of the object are summarized below in the table
  
• The ray diagrams for the image formation in a concave lens for a few positions of the object are summarized below in the table
  

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Class 10 Maths Class 10 Science