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Task 40336.
Sold: 7
last one 27.02.2016
Refunds: 1
Uploaded: 20.01.2024
Content: 40336.PNG 19,45 kB
Refunds: 1
Uploaded: 20.01.2024
Content: 40336.PNG 19,45 kB
Юрий Физик
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Product description
The screen is located at a distance of 21 cm from the hole into which is inserted a lens radius of 5 cm. Lens converging beam of rays falls, resulting in the screen image of a light spot with a radius of 3 cm. It turns out that if the lens is clean, spot radius changes. Find the focal length of the lens.
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The decision was a mistake. She is now fixed.
Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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