Compute all parts of given question:
Question: A 4.5 cm long insect is perpendicular to the optical axis of a thin lens; the bug is 5.3 cm away from the lens. The lens forms an inverted image of the insect which is 1 cm long on a screen behind the lens. (Use three significant figures.)
Part A: How far behind the lens is the screen?
cm
Part B: What is the lens' focal length (pay attention to sign)?
cm
Part C: If the insect were instead only 0.24 cm from the lens, what would the image distance be (pay attention to sign)?
cm
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