29 A conversing beam of rays is incident on a diverging lens Having passed though the lens the rays intersect at a point 15 cm

Question

29 A conversing beam of rays is incident on a diverging lens Having passed though the lens the rays intersect at a point 15 cm from the lens on the opposite side If the lens is removed the point where the rays meets will move 5 cm closer to the lens The focal length of the lens is a 10 cm b 20 cm d 5 cm c 30 cm

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