Practice Problems Thin Lens Equation

Directions: On this worksheet you will be able to practice using the thin lens equation with spherical lenses.

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Question 1  A 12-cm tall object is placed 19 cm from a converging lens that has a focal length of 11 cm. At what distance from the lens will the image be formed?
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Question 2  How tall is the image formed in Question 1?
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Question 3  Describe the image formed in Question 1.
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Question 4  The same 12-cm tall object is now placed 19 cm from a diverging lens that has a focal length of -28 cm. At what distance from the lens will the image be formed?
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Question 5  How tall is the image formed in Question 4?
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Question 6  Describe the image formed in Question 4.
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Question 7  Which image, that produced in Question 3 or in Question 6, was formed by converging rays?
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Question 8  Which lens could be used to produce a virutal image taller than the object?
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Question 9  At what distance in front of the lens in Question 8 should the 12-cm tall object be placed to produce a virtual image that is 5 times taller?