|
Title: A magnifying glass produces an angular magnification of 7. What is the focal len Post by: ppk on Feb 16, 2012 A magnifying glass produces an angular magnification of 7. What is the focal length of this lens if a person whose near point is 28 cm reads a book using this magnifying glass?
A) 2 cm B) 3 cm C) 4 cm D) 5 cm E) 6 cm Title: Re: A magnifying glass produces an angular magnification of 7. What is the focal len Post by: bio_man on Mar 4, 2012 Content hidden
|