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Solve the all parts of following question given below:

Question: 4.7 cm long insect is perpendicular to the optical axis of a thin lens; the bug is 6.4 cm away from the lens. The lens forms an inverted image of the insect which is 0.8 cm long on a screen behind the lens.

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 0.22 cm from the lens, what would the image distance be (pay attention to sign)? _________________cm

Part D: Could the new image be projected on a screen?

I need help to solve the above problem and Use three significant figures.

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