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What is the unit of power of a lens ? Define it .

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NAVNEET PUBLICATION-LENSES-EXERCISE
  1. Answer the following questions : An object is placed in front of a co...

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  2. Answer the following questions : What is the power of a lens ?

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  3. Answer the following questions : What is the unit of power of a lens ...

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  4. Answer the following questions : What is the sign of the power of a...

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  5. Answer the following questions : If there is an increase or decrease ...

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  6. Answer the following questions : If two lenses of focal length f1 and...

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  7. Answer the following questions : Draw a neat labelled diagram to show...

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  8. Answer the following questions : What is cornea ?

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  9. Answer the following questions : What is iris ?

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  10. Answer the following questions : What is pupil ?

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  11. Answer the following questions : What is the use of the pupil in the ...

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  12. Answer the following questions : With reference to the functioning of...

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  13. Answer the following questions : What is the shape and the size of th...

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  14. Answer the following questions : Name the part of the human eye that ...

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  15. Answer the following questions : Which part of the human eye is locat...

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  16. Answer the following questions : What is retina ?

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  17. Answer the following questions : What is the nature of the eye lens a...

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  18. Answer the following questions : What happens when light falls on the...

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  19. Answer the following questions : What are ciliary muscles ?

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  20. Answer the following questions : What is the focal length of the eye ...

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