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SIMPLE MICROSCOPE

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Magnifying power of a simple microscope A is 1.25 less than that of a simple microscope B. If the power of the lens used in B is 25 D, find the power of lens used in A. Given that distance of distinct vision is 25 cm.

In a simple microscope, the lens is held at a distance d from the eye and the image is formed at the least distance d of the distinct vision from the eye. What is the magnifying Power of the microscope ? Where f is the focal length of the lens.

Magnification of simple microscope is found to be 3 when image is formed at least distance for clear vision. What will be the magnification of simple microscope when final image is formed at infinity ? |{:(0,1,2,3,4,5,6,7,8,9):}|

TARGET PUBLICATION-LENSES -Chapter Assessment
  1. Magnification of the lens is always positive for

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  2. If power of spectacles used by Amit's brother is +2.5 D, then he is su...

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  3. For simple microscope to work,

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  4. Match the position of object given in column-I with the corresponding ...

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  5. State the rule represented in the following diagram.

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  6. Name and state the fonnula which gives the relation between f, u and v...

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  7. State true or false. If false, write the correct sentence. For nonnal ...

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  8. We cannot clearly see an object kept at a distance less than 25 cm fro...

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  9. SIMPLE MICROSCOPE

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  10. Write a short note on Presbyopia.

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  11. An object is kept at a distance of 60 cm in front of a convex lens. It...

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  12. Observe the follow diagram and answer the questions. What is the ...

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  13. Observe the follow diagram and answer the questions. For what pur...

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  14. Observe the follow diagram and answer the questions. What will ha...

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  15. Tanrnayee from Std. X uses spectacles. The power of the lenses in her ...

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  16. Tanrnayee from Std. X uses spectacles. The power of the lenses in her ...

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  17. Tanrnayee from Std. X uses spectacles. The power of the lenses in her ...

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  18. State the rules to draw a ray diagram of a convex lens with proper fig...

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  19. FINDING FOCAL LENGTH OF A CONVEX LENS

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  20. Correct the following diagram showing a magnifying lens and explain it...

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