- #1
smart_worker
- 131
- 1
How do i practise drawing this diagram.its very difficult
- Thread starter smart_worker
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- Drawing
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Homework Help Overview
The discussion revolves around techniques for drawing a specific diagram related to optics, particularly involving a convex lens and the representation of light rays. Participants express challenges in reproducing the diagram from memory during exams.
Discussion Character
- Exploratory, Conceptual clarification
Approaches and Questions Raised
- Some participants inquire about the necessity of drawing the diagram in an exam context and discuss various techniques for simplifying the drawing process, such as focusing on essential elements and using color coding. Others emphasize the importance of understanding the underlying concepts of the lens and light rays.
Discussion Status
Participants are exploring different strategies for effectively drawing the diagram, with some suggesting practical tips while others question the requirements of the exam. There is no explicit consensus on the best approach, but several productive ideas have been shared.
Contextual Notes
There is uncertainty regarding whether the diagram must be drawn in the exam, and participants are considering the implications of drawing techniques and conceptual understanding on their ability to reproduce the diagram accurately.
- #2
smart_worker
- 131
- 1
please click on the image for a larger view.please somebody tell me is there any technique to follow to draw this diagram in exams.by seeing i can easily draw it but without seeing i cannot draw.please i need some tips
- #3
adjacent
Gold Member
- 1,552
- 62
Do you have to draw this in exam?I doubt it.
- #4
jedishrfu
Mentor
- 15,696
- 10,504
smart_worker said:
Draw only the real essentials:
Can you get by drawing one ray or two rays instead of 5 rays?
Drawing only the outer two rays gives you the shape of the beam and if you need more rays then you've drawn the boundaries already making it easier.
Of course your other option is to get a tattoo but I think that would be far more painful...
Another option is to draw what you need in different colors, so that they will stand out in your mind:
black for the lens, blue for the the rays, red for the angles...
Last edited:
- #5
Basic_Physics
- 358
- 6
It will be much easier to reconstruct the drawing if you understand the concepts behind it. It is just a convex lens that focusses a set of parallel rays. Question is why is the lens at an angle?
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