Magnification of an image - How does the image look like?

AI Thread Summary
A magnification of -3.5 indicates that the image is virtual and inverted, as the negative sign denotes an inverted image. The magnitude of the magnification suggests that the image is larger than the object, specifically 3.5 times its size. Participants in the discussion are seeking clarification on these concepts and where to find more information. The Wikipedia link provided leads to the lens formula, which is relevant for understanding image formation. Understanding these principles is crucial for analyzing the nature of images produced by lenses.
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If the magnification for an image is equal to –3.5, what is the nature of the image?

I am having difficulties understanding this question and finding answer. Can anyone can tell me where can I find information about this question or how to solve it?...
 
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It would seem that they are interested in knowing if the image is real or imaginary and if it's larger or smaller than the object in question.
 

Thread 'Errors and significant figures'

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Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
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