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Light Waves & Properties Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Which of the following is NOT a source of white light?

Question 2 2. Which of the following belong to the electromagnetic spectrum?

Question 3 3. Which of the following best describes the reason we have the color white?

Question 4 4. Which of the following kinds of waves is most commonly used to cook food?

Question 5 5. Which of the following is a use of infrared?

Page 2

Question 6 6. Which of the following kinds of waves is most commonly used to treat cancer?

Question 7 7. The distance light (any form of electromagnetic radiation) travels through a vacuum in one year is known as (a):

Question 8 8. An AU is an:

Question 9 9. How many miles does one light year represent (round to the nearest whole number)? Hint: 1 mile = 1.61 km.

Question 10 10. In the health sciences, doctors must be aware of scattering in imaging technology, such as _____.

Page 3

Question 11 11. Scattering occurs when energy waves are forced to depart from a _____ path due to imperfections in the medium.

Question 12 12. Scattering is responsible for the _____ color of the clear, daytime sky.

Question 13 13. Which of the following is NOT a factor that transmittance depends on?

Question 14 14. Which of the following describes 'reflected light'?

Question 15 15. Which of the following describes 'transmitted light'?

Page 4

Question 16 16. The direction of a reflected ray striking a curved surface depends upon

Question 17 17. The normal is an imaginary line that is

Question 18 18. When looking into the inner surface of a silver spoon, you would see the image of your chin projected

Question 19 19. What is the definition of the law of reflection?

Question 20 20. What is the definition of a mirror?

Page 5

Question 21 21. What makes a mirror different from the surface of a wall in terms of creating an image?

Question 22 22. A photon is also known as a:

Question 23 23. The number of cycles of a wave that pass a specific point in 1 second is called the:

Question 24 24. The distance between two successive peaks of a wave is known as the:

Question 25 25. The separation of white light through a prism happens because each frequency (color) is _ at a different angle.

Page 6

Question 26 26. What is the angle of refraction for light entering water from air when the light strikes the water at 20° to the normal? The index of refraction of air is 1 and 1.33 for water.

Question 27 27. In Snell's Law, the ratio of the indices is related to the inverse ratio of the _ of the angles.

Question 28 28. Which of the following is NOT a source of visible light?

Question 29 29. Which of the following is NOT a pure spectral color?

Question 30 30. As the frequencies of the pure spectral colors increase, the wavelengths of the colors:

Light Waves & Properties Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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