An object is placed 30cm from a converging lens. if the real image is formed 90cm from the object, calculate the focal length of the lens.?
kenoms
28 Jan, 2024
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javy01
2 Jun, 2026
a compund microscope by lens of focal length 1cm and 5cm.an object placed 1.2cm from the objective lens if a virtual image is formed 25cm from the eye piece .the distance between the two lens is explain and solve with diagram?
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