## koli123able Group Title 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) one year ago one year ago

1. koli123able Group Title

yeah i know him!!

2. koli123able Group Title

he used to answer my questions in mathematics!!!

3. electrokid Group Title

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 Group Title

the given info: do for the first lens di for the last lens

5. electrokid Group Title

|dw:1368205846491:dw| assume the lenses are separated by a distance of "x" then you get two simultaneous equations and one variable

6. electrokid Group Title

i mean, "2" variables

7. electrokid Group Title

|dw:1368205913562:dw|

8. koli123able Group Title

what is the formula for calculating their separation ?

9. koli123able Group Title

@electrokid ??

10. electrokid Group Title

use the thin lens equation for each of the lenses.

11. electrokid Group Title

what equations do you get?

12. koli123able Group Title

what are the equations ?? how get them??

13. electrokid Group Title

I wrote the formulae above. you should also find them in your text.

14. koli123able Group Title

why there are 2 formulas being used ?? and how??

15. electrokid Group Title

only one formula // but use it on each lens.. there are two lenses

16. electrokid Group Title

you'd find it on the first post.

17. koli123able Group Title

what is x ?

18. koli123able Group Title

is it di ??

19. koli123able Group Title

hello u there??

20. koli123able Group Title

helooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

21. koli123able Group Title

i am waiting for ur reply ??

22. koli123able Group Title

i have to go to sleep ....hello u there??

23. electrokid Group Title

"x" = assumed distance between the lenses -> one of the things to calculate

24. koli123able Group Title

plz i cant understand ......plz tell me the solution