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Solve the following examples/ numerical problems: < br > An object is kept at 60 cm in front of a convex lens. Its real image is formed at 20 cm from the lens . Find the focal length of the lens.

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An object of height 2 cm is kept at 30 cm from a convex lens . Its real image is formed at 60 cm from the lens .Find the focal length and power of the lens.

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Solve the following examples/ numerical problems: An object is placed at 10 cm from a convex lens of focal length 12 cm . Find the nature and position of the image .

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An object is kept at 20 cm in front of a convex lens its real image is formed at 60 cm from the lens. Find (i) the focal length of the lens (ii) the height of the image if the height of the object is 6 cm.

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NAVNEET PUBLICATION-LENSES-EXERCISE
  1. Read the following paragraph and answer the following questions given ...

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  2. Read the following paragraph and answer the following questions given ...

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  3. Solve the following examples/ numerical problems: < br > An object is ...

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  4. Solve the following examples/ numerical problems: < br > The focal len...

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  5. Solve the following examples/ numerical problems: When a pin of heig...

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  6. Solve the following examples/ numerical problems: < br > At what dista...

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  7. Solve the following examples/ numerical problems: < br > Aconvex lens ...

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  8. Solve the following examples/ numerical problems: < br > A spherical l...

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  9. Solve the following examples/ numerical problems: An object of heigh...

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  10. Solve the following examples/ numerical problems: An object is place...

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  11. Solve the following examples/ numerical problems: 5 cm high object i...

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

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  13. Solve the following examples/ numerical problems: An object of heigh...

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

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  15. Solve the following examples/ numerical problems: < br > What is the p...

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  16. Solve the following examples/ numerical problems: The power of a con...

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

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  18. Solve the following examples/ numerical problems: Calculate the foca...

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

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  20. Solve the following examples/ numerical problems: Two convex lenses ...

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