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How is myopia corrected?...

How is myopia corrected?

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Explore conceptually related problems

Answer the following questions : What is presbyopia ? State the reason for this defect . How is presbyopia corrected?

Answer the following questions : Anil cannot see the blackboard writing clearly , but he can see near by objects clearly . How is it corrected ?

Answer the following questions : Anil uncle cannot see nearby objects clearly , but he can see distant objects clearly . How is it corrected ?

The problem of myopia is corrected by using convex lens of suitable focal length.

How is hypermetropia corrected?

Answer the following questions : What is hypermetropia or farsightedness? What are the possible reasons of hypermetropia? How is hypermetropia corrected? Explain with figures .

Which one of the following is NOT correct?

Which of the following is the correct?

True/False : Myopia can be corrected by using a spectacle of concave lens.

State whether the following statement are 'True' of False". If false write the correct statement Myopia can be corrected by using a spectacle of concave lens

CHETANA PUBLICATION-LENSES-Exercise
  1. Name the types of telescopes.

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  2. How is hypermetropia corrected?

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  3. How is myopia corrected?

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  4. By which lens the matchstick can catch fire in the sunlight?

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  5. What is persistance of vision?

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  6. What is principal focus?

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  7. Concave lens:Negative focal length:: Convex lens:.

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  8. For the normal human eye, the distance of distinct vision is

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  9. What do you mean by power of accommodation?

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  10. Why do we have bring a small object near the eyes in order to see it c...

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  11. An object is placed at a distance of 15 cm from a convex lens.If the f...

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  12. An object is placed at a distance of 10cm from a convex lens of focal ...

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  13. An object is kept 60 cm from a lens gives a virtual image 20 cm in fro...

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  14. An object 6 cm tall is placed in front of a convex lens at a distance ...

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  15. An object is placed vertically at a distance of 20 cm from a convex le...

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  16. 5 cm high object is placed at a distance of 25 cm from a converging l...

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  17. The focal length of a convex lens is 20 cm.What is the power?

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  18. Doctor has prescribed a lens having power +1.5D. What will be the foca...

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  19. Calculate the focal length of a corrective lens having power+2.5D.

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  20. Three lenses having power 2, 2.5 and 1.7 D are kept touching in a row....

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