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Homework answers / question archive / An object is placed 30 cm to the left of a converging lens that has a focal length of 15 cm
An object is placed 30 cm to the left of a converging lens that has a focal length of 15 cm. Describe what the resulting image will look like (i.e. image distance, magnification, upright or inverted images, real or virtual images)?
Use the lens equation:
1/di + 1/do = 1/f
=> 1/di + 1/30 = 1/15
=> di = 30 cm
M = -1
When the object is located at the 2F point, the image will also be located at the 2F point on the other side of the lens, the image will be inverted. The image dimensions are equal to the object dimensions.
