The focal length of a thin biconvex lens is 20 cm. When an object is moved from a distance of 25 cm in front of it to 50 cm, the magnification of its image changes from m25 to m50. The ratio 2550mm is?
nikhil , 11 Years ago
Grade
1 Answers
Saurabh Koranglekar
Last Activity: 5 Years ago
Dear student Please ask the question in standard notation Regards
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on engineering entrance exams