A small insect is placed 5.40 cm from a 6.00-cm-focal-length lens. a) Calculate the position of the image. Follow the sign conventions. Express your answer using two significant figures and include the appropriate units.   b) Calculate the angular magnification. Express your answer using two significant figures.

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Light comes from an object and passes through a thin lens of unknown shape, creating an image shown in (Figure 1). a) If height h=3.00 mm and D=15.8cm what is the focal length of the lense in cm? b)what type of lens is it? c)what is the height of the image in mm? is the image real or virtual?

1. You have a thin lens of focal length 50 mm. a. The object is 100 mm to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification? b. The object is 1 meter to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification? c. The object is 20 mm to the left of the lens. Where is the image located (that is, what is the image distance q, including sign - express in millimeters)? Is the image real or virtual? What is the magnification?

An image is located 346 mm behind a 204 mm focal length lens. A) Find the object distance. B) Find the magnification of the image. C) Is the image upright or inverted? factor of 4 or when you place it 8.0 cm behind a lens the

A 2.30 cm tall object is 22.0 cm to the left of a lens with a focal length of 11.0 cmcm . A second lens with a focal length of 33.0 cm is 44.0 cm to the right of the first lens. Part A Calculate the final image location from the second lens.         i2=   cm     Part B Calculate the image height.         h(i) =   cm

A 2.0-cm-tall object is located 6.5 cm in front of a converging lens with a focal length of 11.0 cm. A. Use ray tracing to determine the location of the image. (Express your answer to two significant figures and include the appropriate units. Enter positive value if the image is on the other side from the lens and negative value if the image is on the same side.) B. Use ray tracing to determine the height of the image. (Express your answer to two significant figures and include the appropriate units.) C.Is the image upright or inverted? Is the image real or virtual?

3. Figure 2.2 is a photograph of an eyeball with the image of a boy in a doorway. Is the eye here acting as a lens or as a mirror? Explain. 6. A stamp collector uses a converging lens with focal length 28 cm to view a stamp 16 cm in front of the lens. (a)Where is the image located? (b) What is the magnification? Figure 2.1 Problem 2 Figure 2.2 Problem 3

24. A converging lens has a focal length of 15 cm. Suppose an object is placed 40 cm in front of the lens. a) What is the image distance? b) What is the magnification of the image?a) 28 cm b) -0.6a) 24 cm b) -0.6a) 20 cm b) -0.8a) 34 cm b) -0.2

2. A meter stick is held length wise along the principle axis of a concave mirror. The focal length of the mirror is 40 cm the zero end of the meter stick is L=65 cm from the mirror, %3! Meter stick 100 cm L (A) What type of image (real or virtual) will be formed? Justify/explain. (2 points) (B) How long is the image of the meter stick? Show your work. (8 points)