QuestionDetails: Please, can anyone answer in details? A converging lens producing a 3-times enlarged real image ofan object located at 15 cm from the lens. Find the focal length ofthe lens and distance to the image QuestionDetails: Please, can anyone answer in details? A converging lens producing a 3-times enlarged real image ofan object located at 15 cm from the lens. Find the focal length ofthe lens and distance to the image QuestionDetails: Please, can anyone answer in details? A converging lens producing a 3-times enlarged real image ofan object located at 15 cm from the lens. Find the focal length ofthe lens and distance to the image
Explanation / Answer
Given : Magnification (M) = 3 Object distance (u) = 15 cm We know that : Magcification (M) = - v / u or - v / u = 3 or v = - 3 * u = - 3 * 15 cm = - 45 cm Hence Image distance (v) = -45 cm We have : 1 / f = 1 / u + 1 /v = 1 / 15 - 1 / 45 Focal length is : f = 22.50 cm Hope this helps u!