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Answer the following questions : When a...

Answer the following questions :
When are bifocal lenses used in spectacles ?

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Answer the following questions : What is a bifocal lens ?

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Tanrnayee from Std. X uses spectacles. The power of the lenses in her spectacles is-2.5 D. Answer the following questions: State the type of lenses used in her spectacles.

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Answer the following questions : State uses of a concave lens .

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Answer the following questions : With reference to spherical lenses , state the meaning of the following terms or define the following terms and draw the diagrams to illustrate the same: optical centre (O)

Answer the following questions : With reference to spherical lenses , state the meaning of the following terms or define the following terms and draw the diagrams to illustrate the same: focal length (f)

Answer the following questions : With reference to spherical lenses , state the meaning of the following terms or define the following terms and draw the diagrams to illustrate the same: principal axis

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NAVNEET PUBLICATION-LENSES-EXERCISE
  1. Answer the following questions : Anil uncle cannot see nearby objects...

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  2. Answer the following questions : Anil uncle cannot see nearby objects...

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  3. Answer the following questions : When are bifocal lenses used in spec...

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  4. Answer the following questions : Aniket from Std. X uses spectacles ....

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  5. Answer the following questions : Aniket from Std. X uses spectacles ....

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  6. Answer the following questions : Aniket from Std. X uses spectacles ....

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  7. Answer the following questions : Sunita from Std. X uses spectacles . ...

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  8. Answer the following questions : Sunita from Std. X uses spectacles . ...

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  9. Answer the following questions : Sunita from Std. X uses spectacles . ...

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  10. Answer the following questions : Surbhi from Std. X uses spectacles . ...

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  11. Answer the following questions : Surbhi from Std. X uses spectacles . ...

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  12. Answer the following questions : Surbhi from Std. X uses spectacles . ...

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  13. Answer the following questions : My grandfather uses a bifocal lens i...

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  14. Answer the following questions : State uses of a concave lens .

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  15. Answer the following questions : State uses of a convex lens .

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  16. Answer the following questions : What is meant by the apparent size o...

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  17. Answer the following questions : With a neat labelled diagram , expla...

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  18. Answer the following questions : What does a simple microscope consis...

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  19. Answer the following questions : With a neat labelled diagram , expla...

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  20. Answer the following questions : State two uses of a compound microsc...

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