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Answer the following questions : When i...

Answer the following questions :
When is the magnification produced by a lens
positive
negative ?

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NAVNEET PUBLICATION-LENSES-EXERCISE
  1. Answer the following questions : What is a lens formula ? state it.

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  2. Answer the following questions : What is meant by the magnification p...

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  3. Answer the following questions : When is the magnification produced b...

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  4. Answer the following questions : Express the magnification produced b...

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  5. Answer the following questions : An object is kept in front of a lens...

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  6. Answer the following questions : Anu and anand have concave and conve...

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  7. Answer the following questions : To obtain a magnified real image of ...

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  8. Answer the following questions : When an object of height 2 cm is pla...

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  9. Answer the following questions : You are given a lens which gives a v...

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  10. Answer the following questions : When an object of height 3 cm is pla...

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

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

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  13. Answer the following questions : An object is kept in front of a lens...

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  14. Answer the following questions : An object is placed in front of a co...

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

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

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

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

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

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

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