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Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 60 cm from the optical centre?

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SSC JE Exam stands for Staff Selection Commission Junior Engineers Exam, which is held for Civil, Electrical, Mechanical, Quantity Surveying and contract Posts for recruitment in various Organizations/Ministries/Departments in the Government of India.


Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 60 cm from the optical centre?






 
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