Astronomy Forums
 

Go Back   Astronomy Forum > Astronomy Forums > Telescope Forum

Telescope Forum Telescope Forum. Discuss telescopes in this forum.


An astronomical telescope provides an angular magnification of 12. The two...

Telescope Forum



Register Astronomy Forum .net
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 04-16-2008, 02:35 AM
cdc cdc is offline
Junior Member
Points: 301, Level: 6 Points: 301, Level: 6 Points: 301, Level: 6
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Apr 2008
Posts: 2
Default An astronomical telescope provides an angular magnification of 12. The two...

...converging lenses are 68 cm apart.? An astronomical telescope provides an angular magnification of 12. The two converging lenses are 68 cm apart. Find the focal length of each of the lenses.
fe = cm
fo = cm
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Alt
Advertising
Sponsors
 
The advertising shown here is not shown
to registered members. Please
Register quickly now your free account today
to be a FREE member on
Astronomy Forum
Standard Sponsored Site

  #2 (permalink)  
Old 04-16-2008, 02:35 AM
Junior Member
Points: 294, Level: 5 Points: 294, Level: 5 Points: 294, Level: 5
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Apr 2008
Posts: 2
Default

fo/fe=12...therefore fo=12fe
fo+fe=68
dat is 13fe=68......fe=5.23 cm
and derefore fo=62.7 cm

hope ive been of help...again
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
i have an 8 inch dobsonian telescope, whats the best magnification i can get? jgvfkjckgc h Dobsonian Telescopes Forum 3 12-28-2008 10:22 PM
Please explain telescope eye-pieces. Does the higher the mm mean more magnification? airbornerush9577 Telescope Accessories Forum 1 08-09-2008 03:44 PM
About Telescope magnification? Xanox Telescope Forum 0 04-04-2008 03:50 AM
A telescope that produces an overall angular magnification of 38 uses an eyepiece... steve00878 Telescope Eyepieces Forum 0 03-13-2008 04:03 AM
Is 25x to 30x magnification through a lens based telescope be used for vijay k Telescope Eyepieces Forum 2 03-13-2008 04:02 AM


All times are GMT. The time now is 07:08 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Copyright 2007-2008 Astronomy Forum .net