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# Quiz10OpticsMagneticAnswer - the same magnitude of force as...

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AP1200 Quiz 10 Student Name ____________________________ Student ID ___________________ 1. A thin symmetric lens provides an image of a fingerprint with a magnification of +0.2 when the fingerprint is 1.0 cm farther from the lens than the focal point of the lens. What are the type and orientation of the image, and what is the type of lens? (3 points) Answer The image is virtual and erect (same as the object). It’s a diverging lens 2. A proton (charge +e), traveling perpendicular to a uniform magnetic field, experiences
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Unformatted text preview: the same magnitude of force as an alpha particle (charge +2e) which is also traveling perpendicular to the same field. Find the ratio of their speeds: V-proton/V-alpha. (3 points) Answer: Both particles travel perpendicular to the uniform magnetic field. The magnetic force is: F=QVB Both experience the same magnitude of force: e*V-proton*B = 2e*V-alpha*B The ratio of their speeds is: V-proton/V-alpha = 2...
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