In the figure below, point A (marked by a circle) is the top of a small object (

Question

In the figure below, point A (marked by a circle) is the top of a small object (indicated by an arrow). Near it is a concave lens, as shown. The focal points of the lens are marked by black dots. Using a ray diagram, shown where an image of point A would be formed. If the focal length of the lens is 8 cm and the object is 6 cm from the lens, where will the image be? If the object is 1 cm tall, how tall will the image be? Will the image created by the lens be real or virtual? Where will you have to be to see the image?

Explanation / Answer

a. image will be formed in front side of A after lens b. 1/u+1/v=1/f v=3.42 cm c.0.57 cm d.virtual e.before A

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