Ray Diagram for Converging Lens


 
 
Concept Explanation
 

Ray Diagram for Converging Lens

Converging lens:

Converging  lens is the lens in which the parallel rays of light passing through it converge or meet at a single point. Convex lens  which is thicker in the centre converges the rays of light passing through it . That is why it is known as converging lens.

Ray Diagram of Converging Lens:

Ray diagram helps us to determine location, size, orientation and the type of image that will be formed by the lens. 

S.No.

                    Ray Diagram

Position of object

Position of image

   1    At Infinity   Real, inverted, diminished, at F
   2  Between infinity and 2F Real,inverted,diminished, between F and 2F
   3      At 2F Real, inverted, equal in size, at 2F
   4 Between 2F and F   Real, inverted,enlarged, between 2F and
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Sample Questions
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Question : 1

When an object approaches a convex lens, the size of the image formed will _______________

Right Option : B
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Explanation
Question : 2

Which of the following are correct ?

(a) Converging  lens is the lens in which the parallel rays of light passing through it converge or meet at a single point.

(b) In the case of convex lens if the position of the object is at infinity the image is real, inverted, diminished, at the focus.

(c) In the case of convex lens if the position of the object is at focus the image  is real, inverted,enlarged and at  infinity,

Right Option : D
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Explanation
Question : 3

Which of the following are correct ?

(a) Diverging  lens is the lens in which the parallel rays of light passing through it converge or meet at a single point. 

(b) Convex lens is thicker in the centre and converges the rays of light passing through it .

Right Option : B
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Explanation
 
 
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