Task id17275
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- Physics
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DESCRIPTION
Task id17275
A converging beam of light falls on a circular diaphragm with a diameter of 20 cm, forming a cone with an apex angle of 40°. A lens with an optical power of 5 diopters was inserted into the diaphragm. What will be the opening angle of the resulting cone?
Additional information:
Detailed solution. Format gif
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