1 / 26

Physics Light Review Problems

Physics Light Review Problems. 2009. #1. The tallest man in history was 2.72 m tall. The smallest woman in history had a height of 0.55 m. Suppose Robert is standing 5.0 m from a converging mirror that produces an image equal to Pauline’s height, what is the focal length of this mirror?. #2 .

mohawk
Download Presentation

Physics Light Review Problems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Physics Light Review Problems 2009

  2. #1 • The tallest man in history was 2.72 m tall. The smallest woman in history had a height of 0.55 m. Suppose Robert is standing 5.0 m from a converging mirror that produces an image equal to Pauline’s height, what is the focal length of this mirror?

  3. #2 • A human hair is about 0.0080 cm thick. If one places the hair 2.40 cm from a concave mirror with a focal length of 2.50 cm, how thick will the image of the hair appear?

  4. #3 • A steel ball bearing with a radius of 1.5 cm forms an image of an object that has been placed 1.1 cm away from the bearing’s surface. Determine the image distance and magnification.

  5. #4 • A spherical mirror is to be used in a motion-picture projector to from an inverted, real image 95 times as tall as the picture in a single frame of file. The image is projected onto a screen 13 m from the mirror. What type of mirror is required, and how far should it be from the film?

  6. #5 • Consider a concave spherical mirror and an object. Is the image always inverted? Is the image always real? Give conditions for your answers.

  7. #6 • The reflector of a radio telescope has a radius of curvature of 265.0 m. How far above the reflector must the radio-detecting equipment be placed in order to obtain clear radio images?

  8. #7 • Describe the three rays used to predict image location in curved mirrors.

  9. #8 • The real image of a tree is magnified -0.085 times by a telescope’s primary mirror. If the tree’s image forms 35 cm in front of the mirror, what is the distance between the mirror and the tree?

  10. #9 • The real image of a tree is magnified -0.085 times by a telescope’s primary mirror. If the tree’s image forms 35 cm in front of the mirror, what is the focal length of the mirror?

  11. #10* • A child holds a candy bar 15.5 cm in front of the convex side-view mirror of an automobile. The image height is reduced by one-half. What is the radius of curvature of the mirror?

  12. #11 • What could you do to determine if an image is real or virtual?

  13. #12 • What happens to a narrow light beam that enters parallel to the principal axis of a spherical concave mirror?

  14. #13 • What happens to a narrow light beam that passes through the focal point of a concave mirror before being reflected?

  15. #14 • If a vehicle 2.0 m high is 4.6 m from a car’s convex mirror, find the position and height of the image, given that the radius of curvature is 0.80 m.

  16. #15 Which of the following does not refer to a type of electromagnetic wave? A. radio B. sonar C. ultraviolet D. X-ray E. microwave F. gamma

  17. #16 The wavelength of red light is _?_ that of blue light; the frequency of red light is _?_ that of blue light. A. longer than; higher than B. shorter than; lower than C. longer than; lower than D. longer than; the same as E. the same as; higher than F. none of these

  18. #17 From lowest to highest frequency, these would be ordered A. R-IR-UV-γ B. IR-R-UV-γ C. γ-IR-UV-R D. UV-IR-γ-R E. IR-γ-R-UV F. γ-UV-IR-R G. R-UV-γ-IR H. UV-R-IR-γ

  19. #18 Which station broadcasts with 2.94m radio waves? A. KXPR 91.7MHz B. Y 92.5MHz C. WGRD 98.5MHz D. KSFM 102MHz E. KWOD 106MHz F. WLAV 108MHz

  20. #19 • A thimble is 32.0 cm from a concave mirror. The focal point of the mirror is 11.0 cm. What is the magnification of the image?

  21. #20 • A child who is 1.1 m tall is standing 6.0 m from a convex mirror. The child’s image is 0.40 m behind the mirror. What is the size of the image?

  22. #21 • What does negative value of focal length tell you about a mirror? • What does a negative image distance tell you about an image?

  23. #22 • Describe how an image would change as an object is moved from very far away towards the surface of a concave mirror.

  24. #23 • What does the law of reflection state?

  25. #24 • Which color of the visible light portion of the electromagnetic spectrum has the highest frequency? • Most energy? • Longest wavelength?

  26. #25 • A laser pointer emits light waves with a wavelength of 533 nm. What is the frequency of this light?

More Related