PhysicsLAB: 2003 Form B

A thin convex lens A of focal length f_A = 10 cm is positioned on an x-axis as shown above. An object of height 5 cm, represented by the arrow, is positioned 15 cm to the left of lens A.

	(a) On the figure above, draw necessary rays and sketch the image produced by lens A.

	(b) Calculate the location of the image produced by lens A.

	(c) Calculate the height of the image produced by lens A.

A second thin convex lens B of focal length f_B = 10 cm is now positioned 10 cm to the right of lens A, as shown below.

	(d) Determine the location on the x-axis given above of the final image produced by the combination of lenses.

(e) Check the appropriate spaces below to indicate the characteristics of the final image produced by the combination of lenses and explain your answers.

	i. ____ inverted ____ upright

	ii.____ larger than the original object ____ smaller than the original object