Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
New Topic  
RHCP12 RHCP12
wrote...
Posts: 141
Rep: 0 0
2 months ago

Three lenses, each of focal length 90 cm, are placed in contact. What is the focal length of the combination?



27 cm



93 cm



1/30 cm



45 cm



30 cm

Textbook 
College Physics

College Physics


Edition: 5th
Author:
Read 27 times
1 Reply
Replies
Answer verified by a subject expert
culwri204culwri204
wrote...
Posts: 127
Rep: 1 0
2 months ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

RHCP12 Author
wrote...

2 months ago
This site is awesome
wrote...

Yesterday
Thank you, thank you, thank you!
wrote...

2 hours ago
Good timing, thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1191 People Browsing
Related Images
  
 706
  
 365
  
 264