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Emma is observing an image of a pencil t...

Emma is observing an image of a pencil through a convex lens, if she wants to see the erect image of the pencil she should place the pencil

A

at the principal focus `(F_(1))` of the lens

B

at the distance `2F_(1)` from the lens

C

at the distance less than the focal length of the lens

D

any where beyond the point `2F_(1)`

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TARGET PUBLICATION-LENSES -Chapter Assessment
  1. Emma is observing an image of a pencil through a convex lens, if she w...

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  2. Magnification of the lens is always positive for

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

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  4. For simple microscope to work,

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

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  6. State the rule represented in the following diagram.

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

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

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

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  10. SIMPLE MICROSCOPE

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  11. Write a short note on Presbyopia.

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

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

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

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

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

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

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  20. FINDING FOCAL LENGTH OF A CONVEX LENS

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