Why can you solve system of lenses combining the effects?

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SUMMARY

The discussion focuses on the methodology for solving systems of lenses by treating each lens independently. Specifically, it emphasizes that when analyzing a system of lenses, one should first consider the effect of the first lens alone, then use the image it produces as the object for the second lens. This approach is validated by the fact that the rays from the first lens create an image that serves as the input for the second lens, regardless of whether the first image is virtual or real. The conclusion drawn is that the combined system's output is determined by the second lens acting on the image formed by the first lens.

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  • Understanding of geometric optics principles
  • Familiarity with lens types (convex and concave)
  • Knowledge of image formation by lenses
  • Basic skills in ray diagram construction
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  • Study the principles of ray tracing in optical systems
  • Learn about the lens maker's equation for lens design
  • Explore the concept of virtual and real images in optics
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Students of physics, optical engineers, and anyone interested in understanding the behavior of light through lens systems.

physics user1
In solving a system of lenses you have to work like the second lens doesn't exist and then use the image formed by the first lens and work like the first doesn't exist, how can i demonstrate that doing so is correct?
Why is that correct?
The path that the rays make is different as is is if the rays were coming from the image formed from the first lens...
Whst is the first image was virtual, and the second happened to be real, how is this possible?
 
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If I understand your question correctly, the image from the first lens is not really "virtual". It really is the image that is projected onto the second lens of a combined system. So the result of the combined system is the result of the second lens operating on the image from the first lens.
 

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