Top Posters
Since Sunday
t
7
m
6
k
6
F
5
j
5
t
5
j
5
G
5
f
5
a
5
d
5
c
5
Home Q & A Board Science-Related Homework Help Physics
New Topic  
Chery Chery
wrote...
Go to Answer
Posts: 3587
Rep: 26 1
7 years ago
A compound microscope has a 18-cm-long barrel and an objective lens with a focal length of 8.0 mm.  What is the focal length of the eyepiece to give a total magnification of 240? It is adjusted for minimum eyestrain for persons with a near point of 25 cm.
A) 1.3 m
B) 1.5 cm
C) 1.9 cm
D) 2.1 cm
E) 2.3 cm
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
Read 584 times
3 Replies
Replies
Answer verified by a subject expert
HotMathHotMath
wrote...
#1
Top Poster
Posts: 629
Rep: 134 0
7 years ago Edited: 2 years ago, bio_man
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here

Related Topics

Chery Author
wrote...
#2
7 years ago
Looked all over the internet for this, thank you for answering correctly
wrote...
#3
4 years ago
Looked all over the internet for this, thank you for answering correctly
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1143 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 295
  
 1183
  
 321
Your Opinion
Who will win the 2024 president election?
Votes: 7
Closes: November 4
Previous poll results: Which 'study break' activity do you find most distracting?