Question based on Lenses -O level/gcse

  • Thread starter Thread starter Wasif Shah
  • Start date Start date
  • Tags Tags
    Lenses
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
3 replies · 2K views
Wasif Shah
Messages
9
Reaction score
0
New poster has been reminded to post schoolwork-type questions in the HH fourms and to use the Template
Hey can anyone explain this question to me?
 

Attachments

  • IMG_4412.JPG
    IMG_4412.JPG
    35 KB · Views: 509
Physics news on Phys.org
yeaah i tried using magnification=image/object ratio thing. But idk why in the solution they have taken the length of image as 50. I agree with taking 20 as the length of object but i don't get the taking 50 as the length of image.
 
The location of the image is deterimined by drawing three special light rays from the object through the lens.
How should such rays be drawn?
Have you tried constructing such a drawing by say using a scale of 1 cm in the drawing is 2 cm in real life?
 
Last edited: