1. All telescope and microscope eye pieces act like magnifying glasses. Draw a ray diagram when the converging lens has a focal length of 2.00 meters and the object is 1.40 meters from the lens. The lens, object, and focal points are shown below. 1.0m 2.0m object 3.0 m lens 4.0 m 5.0 m

You have a thin, diverging lens. If the value of q (the distance from the image to the mirror along the principal axis of the mirror) is -3.57cm and the distance of p (the distance from the object to the mirror along the principal axis of the mirror) is 17.16cm, what is the focal length of the diverging lens? Object Ray 1 Principal focal point Virtual image Diverging lens. Ray 1 Ray 3 Ray 2 Secondary focal point Note: Do not explicitly include units in your answer (it is understood the unit is cm). Enter only a number. If you do enter a unit, your answer will be counted wrong.

A concave lens has a focal length of -45 cm. a) Find the image distance that results when an object is placed 32 cm in front of the lens. b) Find the magnification that results when an object is placed 32 cm in front of the lens.

A spherical concave lens has a focal length of 50 cm, and an object is placed 20 cm from the lens. Draw a ray diagram. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen Estimate the image distance. cm

The distance between the objective and eyepiece lenses in a microscope is 21 cm . The objective lens has a focal length of 5.0 mm .   What eyepiece focal length will give the microscope an overall angular magnification of 350?

A custom-made compound microscope (see the figure below) with an objective lens with a focal length of 3.60 cm, an eyepiece lens with a focal length of 6.25 cm and a barrel length of 26.0 cm is used to view a 0.100 cm specimen mounted on a microscope slide. Since the microscope is custom-made, it varies slightly from a standard production microscope in that the object distance for the objective is so much larger than the focal length of the objective that we cannot set the object distance for the objective equal to the focal length of the objective. However, the image formed by the objective is close enough to the focal point of the eyepiece that we are justified in setting the object distance for the eyepiece equal to the focal length of the eyepiece. Finally, the microscope is being used by a lab technician with a near point of 30.0 cm. (Use the exact values you enter to make later calculations.) - d1o- dzo Objective lens !lp- Eyepiece lens Object , -f2- Viewer Final image Determine…

The figure shows an object and its image formed by a thin lens. Assume that d1 = 0.781 m, d2 = 0.604 m, and h = 7.50E-2 m. What is the image height (in m; answer sign and magnitude)?

6. An object is 185 cm from a convex lens with a focal length of 25 cm. When an inverted image is 12 cm tall, how tall is the associated object? 7. What are the image height and orientation produced by the setup in the following figure? Object 5.0 cm – 10.0 cm - 15.0 cm

15. An object is placed at a distance xo =-1.5f in front of a convex lens of focal length f located at x = 0. An identical object is placed at a distance x'o = -2f in front of a concave lens of focal length - f located at x' = 0. Find the difference between the two image positions (x' - Xi). Draw ray diagrams.

7. Two 10.0 cm focal length lenses are placed 20.0 cm away from each other. An object sits 5.00 cm to the left of the first lens. Draw its final image. 8. Two 10.0 cm focal length lenses are placed 20.0 cm away from each other. An object sits 15.00 cm to the left of the first lens. Draw its final image.