An upright arrow, 1.5 cm tall, is placed a distance 2.0 cm in front of a convex lens(lens 1) As a result, an upright image(image 1) of height 4.5 cm is formed on the same side of the lens 1 as the arrow. a) What is the length of (f sub 1) of lens 1? Is image 1 real or virtual? b) A second lens (lens 2) is now placed behind the first one, and an inverted image(image 2) of the arrow is observed a distance 4.0 cm behind lens . The height of image 2 is 1.5cm. Is image 2 real or virtual? What is the focal length of lens ? is it concave or covex? how far is lens 2 from lens 1? c) draw a ray diagram with a scale of 1:1 for the two-lense system based on the results of your calculation above.

An upright arrow, 1.5 cm tall, is placed a distance 2.0 cm in front of a convex lens(lens 1) As a result, an upright image(image 1) of height 4.5 cm is formed on the same side of the lens 1 as the arrow. a) What is the length of (f sub 1) of lens 1? Is image 1 real or virtual? b) A second lens (lens 2) is now placed behind the first one, and an inverted image(image 2) of the arrow is observed a distance 4.0 cm behind lens . The height of image 2 is 1.5cm. Is image 2 real or virtual? What is the focal length of lens ? is it concave or covex? how far is lens 2 from lens 1? c) draw a ray diagram with a scale of 1:1 for the two-lense system based on the results of your calculation above.

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