What Are Virtual Images and How Do They Work?

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A virtual image is formed when light rays appear to diverge from a point, creating an image that cannot be projected onto a screen. It is not located at a physical distance from the lens or mirror. The discussion suggests using typical focal values for the eye to apply the thin lens imaging formula. Understanding the properties of virtual images is essential in optics. The conversation emphasizes the need for clarity in calculations related to virtual images.
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Virtual image??

Nvm I got it.
Thank you anyways

virtual image is not the actual distance kk.
 
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Hmm, I think the problem wants you to find some reasonable focal values for the eye and compute your typical thin lens imaging formula.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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