26 A screen is placed 90 cm from an object The image of the

Last updated: 6/10/2023

26 A screen is placed 90 cm from an object The image of the object on the screen is formed by a convex lens at two different locations separated by 20 cm Determine the focal length of the lens a 21 4 cm c 214 cm b 2 14 cm d 0214 cm