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Draw ray diagrams to represent the natur...

Draw ray diagrams to represent the nature, position and relative size of the lens for the object placed:
a) at `2F_(1)`,
b) between `F_(1)` and the optical center O of the lens.
Which of the above two cases shows the use of convex lens as a magnifying glass? Give reasons for your choice.

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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. a) With the help of a labelled diagram explain how a convex lens conve...

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  2. a) With the help of a labelled diagram, explain how a concave lens div...

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  3. Draw ray diagrams to represent the nature, position and relative size ...

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  4. a) An object is placed well outside the principle focus of a convex le...

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  5. a) Explain what is meant by a virtual, magnified image. b) Draw a ra...

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  6. A convex lens a focal length of 10 cm. At which of the following posit...

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  7. Which one of the following materials cannot be used to make a lens ?

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  8. A small bulb is placed at the focal point of a converging lens. When t...

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  9. An illuminated object is placed at a distance of 20 cm from a convergi...

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  10. An object is placed between f and 2f of a convex lens. Which of the fo...

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  11. Given a point source of light, which of the following can produce a pa...

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  12. In order to obtain a real image twice the size of the with a convex le...

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  13. A converging lens is used to produce an image of an object on a screen...

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  14. A convex lens of focal length 8 cm forms a real image of the same size...

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  15. A virtual, erect and magnified image of an object is to be obtained wi...

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  16. A burning candle whose flame is 1.5 cm tall is placed at a certain dis...

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  17. A lens of focal length 12 cm forms an upright image three times the si...

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  18. If an object is placed 21 cm from a converging lens, the image formed ...

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  19. An object is placed at the following distances from a convex lens of f...

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  20. When an object is placed at a distance of 36 cm from a convex lens, an...

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