Question

You stand two feet away from a planer mirror. How far is it from you to your image? a. 2.0 ft b. 3.0 ft C. 4.0 ft. d. 5.0 ft. 10. A concave mirror forms a real image 25.0 cm from the mirror surface along the principal axis. If the corresponding object is at a 10.0-cm distance, what is the mirror's focal length? a. 1.43 cm b. 16.7 cm c. 12.4 cm d. 7.14 cm 11. If a virtual image is formed 10.0 cm along the principal axis behind a convex mirror of focal length -15.0 cm, how far is the object from the mirror? a. 30.0 cm b. 10.0 cm c. 6.00 cm d. 3.00 cm 12. An object is placed at a distance of 30 cm from a thin convex lens along its axis. The lens has a focal length of 10 cm. What are the values, respectively, of the image distance and magnification? a. 60.0 cm and 2.0 b. 15 cm and 2.0 c. 60 cm and -0.50 d. 15 cm and -0.50 Page 3 of 6

Answer 1

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