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koli123able

  • 2 years ago

A compound microscope has an objective and an eye-piece of focal length 1cm and 5cm respectively. The object is located at a distance of 1.05cm close from the objective and form an image 4.17cm close to eye-piece . Find the separation of the lenses and the magnifying power of the microscope (d=25cm)

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  1. koli123able
    • 2 years ago
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    yeah i know him!!

  2. koli123able
    • 2 years ago
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    he used to answer my questions in mathematics!!!

  3. electrokid
    • 2 years ago
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    solve this in two steps.|dw:1368205614311:dw| apply the thin lens equation one for each lens \[{1\over f}={1\over d_i}+{1\over d_o}\]

  4. electrokid
    • 2 years ago
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    the given info: do for the first lens di for the last lens

  5. electrokid
    • 2 years ago
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    |dw:1368205846491:dw| assume the lenses are separated by a distance of "x" then you get two simultaneous equations and one variable

  6. electrokid
    • 2 years ago
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    i mean, "2" variables

  7. electrokid
    • 2 years ago
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    |dw:1368205913562:dw|

  8. koli123able
    • 2 years ago
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    what is the formula for calculating their separation ?

  9. koli123able
    • 2 years ago
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    @electrokid ??

  10. electrokid
    • 2 years ago
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    use the thin lens equation for each of the lenses.

  11. electrokid
    • 2 years ago
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    what equations do you get?

  12. koli123able
    • 2 years ago
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    what are the equations ?? how get them??

  13. electrokid
    • 2 years ago
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    I wrote the formulae above. you should also find them in your text.

  14. koli123able
    • 2 years ago
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    why there are 2 formulas being used ?? and how??

  15. electrokid
    • 2 years ago
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    only one formula // but use it on each lens.. there are two lenses

  16. electrokid
    • 2 years ago
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    you'd find it on the first post.

  17. koli123able
    • 2 years ago
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    what is x ?

  18. koli123able
    • 2 years ago
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    is it di ??

  19. koli123able
    • 2 years ago
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    hello u there??

  20. koli123able
    • 2 years ago
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    helooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

  21. koli123able
    • 2 years ago
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    i am waiting for ur reply ??

  22. koli123able
    • 2 years ago
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    i have to go to sleep ....hello u there??

  23. electrokid
    • 2 years ago
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    "x" = assumed distance between the lenses -> one of the things to calculate

  24. koli123able
    • 2 years ago
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    plz i cant understand ......plz tell me the solution

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