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Q1. A converging lens has a focal length of f = 29 cm. If an object is placed 40 cm from the lens, where will the image be formed?

Q2. Halley's Comet, which passes around the Sun every 75 years, has an elliptical orbit. When closest to the Sun (perihelion) it is at the distance of 8.825 times 10^ {10}; {rm{m}} and moves with a speed of 54.6 {rm km}/{rm s}. The greatest distance between Halley's comet and the Sun (aphelion) is 6.152 times 10^ {12}; {rm{m}}.

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