Optics Unit Test Review

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Date: _____________________
1.
What properties do all electromagnetic waves have in common? ________________________________________________
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3.
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Compare and contrast the eight different sources of light. Know definitions and examples.
Label the wavelength, amplitude, crest, trough, and rest position of a wave.
4.
State two parts of Law of Reflection, and apply this law when answering a question.
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5.
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What is difference between specular reflection and diffuse reflection? Provide examples.
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8.
What would angle of reflection be for an angle of incidence of 32⁰?
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What would angle of incidence be for an angle of reflection of 47⁰?
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Light rays from flashlight are incident on plane mirror at angle of 65⁰, measure angle of reflection. Label
normal line, incident ray, reflected ray, angle of incidence, and angle of reflection.
9.
What causes refraction? ______________________________________________________________________________________________
10. Light bends ___________________________ when entering a less dense medium. And _________________________ when
entering a more dense medium. Optical density is measured by ________ = Index of Refraction. n = _____/_____
(Be able to solve for v and n)
11. List some phenomena related to refraction. ________________________________________________________________________
12. Draw ray diagram for light travelling from water (n=1.33) at angle of 45⁰ into air (n=1). Critical angle for
water is 40⁰. Draw a 2nd ray with an angle of incidence of 30⁰. Label your diagram.
13. What conditions must be met for total internal reflection to occur? _____________________________________________
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14. What applications make use of this? ________________________________________________________________________________
15. Compare and contrast converging and diverging lenses. What are some uses of each type of lens?
16. Why does a diverging lens never produce a real image? __________________________________________________________
17. What happens to image as object moves closer to lens? __________________________________________________________
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22.
Lens gets _________________ when looking at up-close objects, and __________________ when objects are far away.
Be able to draw ray diagrams for converging lenses only and describe images using SALT. #2 pg 561.
As n increases, focal length ________________________. As thickness increases, focal length _________________________
Label a diagram of human eye. Understand structure and function of each part.
Describe five similarities between a camera and the human eye.
23. How is an image formed by the eye? Describe image found on retina.
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24. Compare and contrast far-sightedness and near-sightedness. What type of lens corrects each condition?
25. Compare and contrast concave and convex mirrors. What are some uses of each type of mirror?
26. You stand 1.8m in front of plane mirror. Use SALT to describe image. ___________________________________________
27. Be able to draw ray diagrams for concave mirrors and describe images using SALT. #8 pg 501.
***Review your Notes, Homework, Labs, Quest Review, and Quest.
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