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This shows how the projector-lens f-number is governed only by the... | Download Scientific Diagram
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A slide projector has a lens of focal length 12.1 cm. Each slide is 24 mm by 36 mm. The projector is used in a room where the screen is 4.2 m
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CALCULATE FOCAL LENGTH l Focal Length Calculator
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SOLVED: certain slide projector has a 10 mm-focal length lens A) How far away is the screen if a slide is placed 100 mm from the lens and produces sharp image? B.)
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