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P. 3792. A collecting lens makes a 6 cm high real image of a 12 cm high object on a screen at a 45 cm distance from the object. Determine the position of the lens and its focal length with plotting and calculation.

(4 points)

Deadline expired.

Statistics on problem P. 3792. 146 students sent a solution. 4 points:61 students. 3 points:74 students. 2 points:4 students. 1 point:6 students. 0 point:1 student.