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


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Class 10 Maths Class 10 Science

Practice Question

Question 1 Which among the following is not a base?
A) NaOH
B) $NH_4OH$
C) $C_2H_5OH$
D) KOH
Question 2 What is the minimum resistance which can be made using five resistors each of 1/2 Ohm?
A) 1/10 Ohm
B) 1/25 ohm
C) 10 ohm
D) 2 ohm
Question 3 Which of the following statement is incorrect? ?
A) For every hormone there is a gene
B) For production of every enzyme there is a gene
C) For every molecule of fat there is a gene
D) For every protein there is a gene






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