Task id16292

Task id16292

A converging beam of rays passes through a round hole in the screen. The rays intersect at point A, located at a distance a = 15 cm from the screen. How will the distance from the meeting point of the rays to the screen change if a collecting lens with a focal length F = 30 cm is inserted into the hole? Construct the path of rays after installing the lens (Fig.).

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Detailed solution. Format gif