module link: https://drive.google.com/file/d/1rNAhdNXBFmo9kCbAmW3yaC-qCOCZnFWu/view?usp=sharing

test 1

1. Which of the following best describes the image formed by a plane mirror? A. real, inverted and reduced B. virtual, inverted and enlarged C. real, upright and the same size as object D. virtual, upright and the same size as object 2. What is the object distance from the mirror if a virtual image is formed 10.0 cm along the principal axis from a convex mirror of focal length - 15.0 cm? A. 3.0 cm B. 6.0 cm C. 10.0 cm D. 30.0 cm 3. What is the mirror's focal length if a man's face is 30.0 cm in front of a concave shaving mirror creating an upright image 1.50 times as large as the object? A. 12.0 cm B. 20.0 cm C. 70.0 cm D. 90.0 cm 4. Which of the following best describes the image formed by a concave mirror when the object is located somewhere between the focal point (F) and the centre of curvature (C) of the mirror? A. virtual, upright and reduced C. real, inverted and reduced B. virtual, upright and enlarged D. real, inverted and enlarged 5. Which of the following best describes the image formed by a concave mirror when the object is at a distance further than the centre of curvature (C) of the mirror? A. virtual, erect and enlarged C. real, inverted and reduced B. virtual, upright and reduced D. real, inverted and enlarged 6. Which of the following best describes the image formed by a convex mirror when the object distance from the mirror is less than the absolute value of the focal length (f)? A. virtual, upright and reduced C. real, inverted and reduced B. virtual, upright and enlarged D. real, inverted and enlarged 7. A man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror. What is the required length of the mirror? A. equal to the height of the man B. equal to one half the height of the man C. depends on the distance the man stands from the mirror D. depends on both the height of the man and the distance from the man to the mirror 8. What is the image of an object when seen in a convex mirror? The image is always or either be A. magnified or virtual C. real or virtual B. magnified or real D. none of the above 9. A carbon tetrachloride has an index of refraction of 1.461. What is the speed of light through this liquid? (c = 3 x 108 m/s) A. 1.461 x 108 m/s C. 4.38 x 108 m/s B. 2.05 x 108 m/s D. 4.461 x 108 m/s 10. A 3.0 cm tall object is placed along the principal axis of a thin converging lens of 30.0 cm focal length. Which of the following best describes the image distance and height, respectively if the object's distance is 40.0 cm? A. 17.3 cm; 1.0 cm C. 120 cm; -1.0 cmB. 17.3 cm; 7.3 cm D. 120 cm; -9.0 cm 11. Which of the following best describes the image for a thin converging lens that forms whenever the object is at a distance less than one focal length from the lens? A. inverted, reduced and real C. upright, reduced and virtual B. inverted, enlarged and real D. upright, enlarged and virtual 12. An object is placed at a distance of 30.0 cm from a thin converging lens along its axis. The lens has a focal length of 10.0 cm. What are the values of the image distance and magnification respectively? The image distance is while the magnification is A. 15.0 cm; -0.500 C. 60.0 cm; -0.500 B. 15.0 cm; 2.00 D. 60.0 cm; 2.00 13. An object is placed at a distance of 30.0 cm from a thin converging lens along the axis. What is the focal length of the lens if a real image forms at a distance of 10.0 cm from the lens? A. 7.50 cm B. 10.0 cm C. 15.0 cm D. 30.0 cm 14. What do you call the eye condition in which the image is formed behind the retina? A. image defect C. farsightedness B. blind spotting D. nearsightedness 15. How can nearsightedness be corrected? It can be corrected by using A. converging mirror C. diverging mirror B. converging glasses D. diverging glasses1. What value does the angle between the incident and reflected rays ultimately approaches as the angle of incidence is increased for a ray incident on a reflecting surface? A. zero B. 45 degrees C. 90 degrees D. 180 degrees 2. How far away would you see yourself if you stand three feet in front of a plane mirror? A. 1.5 ft B. 3.0 ft C. 6.0 ft D. 12.0 ft 3. A concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm away on its principal axis. How far from the mirror is the corresponding object located? A. 5.0 cm B. 7.5 cm C. 15.0 cm D. 20.0 cm 4. A concave mirror forms a real image at 25.0 cm from the mirror surface along the principal axis. What is the mirror's focal length if the corresponding object is at a 10.0 cm distance? A. 1.4 cm B. 7.1 cm C. 12.4 cm D. 16.7 cm 5. What is the object distance from the mirror if a virtual image is formed along the principal axis 10.0 cm from a concave mirror with the focal length 15.0 cm? A. 6.0 cm B. 10.0 cm C. 12.4 cm D. 30.0 cm 6. Which of the following best describes the image formed by a concave mirror when the object distance from the mirror is less than the focal length (f)? A. virtual, upright and reduced C. real, inverted and reduced B. virtual, upright and enlarged D. real, inverted and enlarged 7. When the image of an object is seen in a plane mirror, the image distance is the same as the object distance. What affects the distance of the image from the mirror? The distance from the mirror to the image depends on the A. frequency of light used for viewing B. wavelength of light used for viewing C. distance from the object to the mirror D. distance of both the observer and the object to the mirror 8. Which of the following best describes the image for a thin diverging lens that forms whenever the magnitude of the object distance is less than that of the lens' focal length? A. inverted, reduced and real C. upright, reduced and virtual B. inverted, enlarged and real D. upright, enlarged and virtual 9. An object is placed at a distance of 6.0 cm from a thin converging lens along its axis. The lens has a focal length of 9.0 cm. What are the values of the image distance and magnification respectively? The image distance is while the magnification is A. -18.0 cm; -3.0 C. 3.0 cm; -0.50 B. -18.0 cm; 3.0 D. 18.0 cm; 3.010. An object is placed at a distance of 40.0 cm from a thin lens along the axis. What is the focal length of the lens if a virtual image forms at a distance of 50.0 cm from the lens on the same side as the object? A. 22.2 cm B. 45.0 cm C. 90.0 cm D.200.0 cm For numbers 11-12, refer to the figure below. IV V 11. Which of the following are the converging lens? A. I and V C. II and III B. II, III and IV D. III and IV 12. Which of the following are the diverging lens? A. I and V C. II and III B. II, III and IV D. III and IV For numbers 13-14, refer to the diagram below. Image forned behind retina. 13. What type of eye problem does this person suffer? A. cataracts C. farsightedness B. delusions D. nearsightedness 14. How does this problem could most easily be corrected? This can be corrected by the use of a/ an A. diverging lens C. achromatic lens B. converging lens D. good night's sleep 15. A real image is formed by a converging lens. Where is the new image located if a weak diverging lens is placed between the converging lens and the image? A. cannot be located B. at the original image position C. closer to the converging lens than the original image D. farther from the converging lens than the original image