1. Consider these colors of light: yellow, blue, and red. Part A. Put these light waves in order according to wavelength, from shortest wavelength to longest wavelength. Part B. Put these light waves in order according to frequency, from lowest frequency to highest frequency.

a) wavelength: blue, yellow, red frequency: blue, yellow, red

b) wavelength: blue, yellow, red frequency: red, yellow, blue

c) wavelength: red, yellow, blue frequency: blue, yellow, red

d) wavelength: red, yellow, blue frequency: red, yellow, blue

2. Describe the location of gamma rays on the electromagnetic spectrum.

a) At the high-frequency and long-wavelength end of the spectrum

b) At the low-frequency and short-wavelength end of the spectrum

c) At the high-frequency and short-wavelength end of the spectrum

d) At the low-frequency and long-wavelength end of the spectrum

3. Light travels at different speeds in different media. Put these media in order, from the slowest light speed to the fastest light speed: air, diamond, vacuum, water.

a) vacuum, diamond, air, water

b) diamond, air, water, vacuum

c) air, diamond, water, vacuum

d) diamond, water, air, vacuum

4. State the law of reflection.

a) <, where is the angle of reflection and is the angle of incidence.

b) >, where is the angle of reflection and is the angle of incidence.

c) =, where is the angle of reflection and is the angle of incidence.

d) =0, where is the angle of reflection

5. Does light change direction toward or away from the normal when it goes from air to water? Explain.

a) The light bends away from the normal because the index of refraction of water is greater than that of air.

b) The light bends toward the normal because the index of refraction of water is greater than that of air.

c) The light bends toward the normal because the index of refraction of air is greater than that of water.

d) The light bends away from the normal because the index of refraction of air is greater than that of water.

6. An object is positioned in front of a lens with its base resting on the principal axis. Describe two rays that could be traced from the top of the object and through the lens that would locate the top of an image.

a) A ray parallel to the axis and a ray through the center of the lens

b) A ray parallel to the axis and a ray through the center of the lens A ray parallel to the axis and a ray that does not pass through the focal point

c) A ray parallel to the axis and a ray that does not pass through the center of the lens

d) A ray perpendicular to the axis and a ray through the center of the lens

7. For a concave lens, if the image distance,d_i, is negative, where does the image appear to be with respect to the object?

a) The image appears on the same side of the lens only if the object distance is less than the focal length.

b) The image always appears on the same side of the lens.

c) The image appears on the opposite side of the lens only if the object distance is greater than the focal length.

d) The image appears on the opposite side of the lens.

8. Which behavior of light is indicated by an interference pattern?

a) corpuscular behavior

b) wave behavior

c) ray behavior

d) particle behavior

9. A principle related to resolution states, "Two images are just resolved when the center of the diffraction pattern of one is directly over the first minimum of the diffraction pattern of the other." Write the equation that expresses that principle.

a) =1.22/

b) =1.22/

c) =/

d) =/

10. Which statement completes this resolution? Two images are just resolved when

a) The center of the diffraction pattern of one image is directly over the first minimum of the diffraction pattern of the other

b) The center of the diffraction pattern of one image is directly over the central minimum of the diffraction pattern of the other

c) The center of the diffraction pattern of one is directly over the first maximum of the diffraction pattern of the other

d) The center of the diffraction pattern of one image is directly over the central maximum of the diffraction pattern of the other.