1. An object is 6.0-cm tall, and it is placed 30.0 cm from a lens with convex focal length 10.0 cm. Create an appropriate scale such that the situation is large on a piece of graph paper. Clearly state the scale you are using. Carefully locate the image distance and the image size with a ray diagram. b) Solve the above problem with mathematics. c) Find the percent difference between the image distance and the image size found above.

Two converging lenses with focal lengths of 40 cm and 20 cm are 10 cm apart. A 2.0-cm-tall object is 15 cm in front of the 40-cm-focal-length lens.a. Use ray tracing to find the position and height of the image. To do this accurately use a ruler or paper with a grid. Determine the image distance and image height by making measurements on your diagram.b. Calculate the image height and position relative to the second lens. Compare with your ray-tracing answers in part a.

5. An 4 cm high object is placed 25 cm in front of a lens of focal length +20 cm. 60 cm past the first lens is a second lens of focal length +25 cm. a) Draw a ray diagram, showing (approx) relative positions of lenses, objects, and images b) How far past the 25 cm lens does the final image form? c) What is the size and orientation ( relative to the original object) of the final image?

An object is 16.0 cm to the left of a lens. The lens forms an image 36.0 cm to the right of the lens. Part A What is the focal length of the lens? Express your answer in centimeters. % ΑΣΦ f = Submit Part B Request Answer Is the lens converging or diverging? The lens is converging. The lens is diverging. Submit Request Answer = cm

A doctor examines a mole with a 19.24 cm focal length magnifying glass held 12.06 cm from the mole. a) Where is the image? m b) What is its magnification? c) How big is the image of a 6.85 mm diameter mole? mm

A doctor examines a mole with a 15.5 cm focal length magnifying glass held 14.0 cm from the mole. a. Where is the image? (Enter the image distance in meters) b. What is its magnification?  c. How big in millimeters is the image of a 5.30 mm diameter mole?

Two converging lenses with focal lengths of 50 cm and 21 cm are 10 cm apart. A 3.9- cm-tall object is 25 cm in front of the 50-cm -focal-length lens. A. Calculate the distance between the final image and 21-cm-focal-length lens. B. Calculate the image height.

An object is placed 4cm left of a converging lens with a focal length of 10cm. a. Make a sketch of this arrangement and draw 3 principal rays to find where the image should form.   b. Is the image real or virtual? c. Use the thin lens equation to calculate the position of the image. d. (New situation) An object is placed 30 cm to the left of a diverging lens of focal length 20 cm. Sketch this arrangement by drawing 3 principal rays. Draw where you think the image should form

2. An object is located 60.0 cm to the left of a concave mirror (with R = 30 cm). a) What is the focal length for this mirror? Include the correct sign (positive or negative). b) Use the mirror equation to find the location of the image. State whether the image is real or virtual. c) Use the magnification equation to find the magnification of the image. State whether the image upright or inverted, and magnified or diminished. d) Confirm your answer to part (b) by drawing a ray diagram on the figure to find where image is located (Use three rays). 1

a) Calculate the distance between the final image and 22-cmcm-focal-length lens. b) Calculate the image height.