Real 3D Image produced by concave lens

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Homework Help Overview

The discussion revolves around identifying the correct image produced by a concave lens, focusing on the properties of the image based on the object's placement relative to the lens's focal length.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the use of ray diagrams to analyze the image formation and question the correctness of their selected answers based on the properties of the lens.

Discussion Status

There are various interpretations of the image characteristics, with some participants suggesting that their initial answers may be incorrect. The conversation indicates a mix of attempts to clarify the situation and explore different perspectives on the problem.

Contextual Notes

Participants mention confusion regarding the type of lens and the characteristics of the image, including size and orientation. There is also a reference to the context of an exam paper, which may impose additional constraints on the discussion.

Knightycloud
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Homework Statement


Find the correct image produced by the concave lens. F is focal length.


Homework Equations


If an object is placed between F and 2F, the image will be inverted, real, larger and beyond 2F.


The Attempt at a Solution


I choose the answer A. Is it correct?

*Please refer attachments. Thanks!
 

Attachments

  • Lense.JPG
    Lense.JPG
    6 KB · Views: 520
  • Lense Ans.JPG
    Lense Ans.JPG
    3.4 KB · Views: 521
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Use a ray diagram to resolve this problem. The arrow head of the object is closer to the lens.
 
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Likes   Reactions: 1 person
Thanks, the answer is B. I marked it wrong anyway! :/
 
My ray diagram suggests neither are correct?
 
Sorry, I think the image makes a little fuzzy. That arrow curve is perpendicular to the axis. In this image it looks it's headed towards i see.
 
The image is smaller, upright and virtual.
 

Attachments

  • concave lens ray diagram.jpg
    concave lens ray diagram.jpg
    11.1 KB · Views: 576
My bad. It's a convex lens :( Sorry, now only noticed.
Basic_Physics
I think now you can get it correct. Thanks for the support. :) It was in my exam paper and I chose the wrong one anyway! :(
 

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