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| 1. Corpuscular theory of light was developed by: |
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A.
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Isaac Newton |
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B.
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Stephen Hawking |
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C.
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Plato |
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D.
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Thomas Edison |
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| 2. The “double-slit” experiment was performed by: |
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A.
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Thomas Young |
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B.
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Plato |
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C.
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Albert Einstein |
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D.
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Isaac Newton |
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| 3. Electromagnetic radiation is formed by waves of changing magnetic fields that vibrate perpendicularly to changing: |
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A.
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Sound Waves |
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B.
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Photons |
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C.
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Electrical Fields |
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D.
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Gravity Fields |
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| 4. The frequency of electromagnetic vibration is equal to velocity divided by: |
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A.
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Amplitude |
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B.
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Wavelength |
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C.
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Photons |
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D.
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Temperature |
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| 5. Light is emitted by a: |
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A.
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Reliable Source |
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B.
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Secondary Source |
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C.
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Luminous (Primary) Source |
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D.
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Dark Source |
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| 6. Light interacts with an object by: |
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A.
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Absorption |
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B.
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Reflection |
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C.
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Transmission |
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D.
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All of the Above |
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| 7. During absorption, the atoms in the surface “catch” the energy of incident light and: |
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A.
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Release It Back in the Same Direction |
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B.
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Convert It into Heat |
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C.
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Pass It Along to Adjacent Atoms |
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D.
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Scatter It in Many Directions |
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| 8. _______________ has a longer wavelength than ______________ : |
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A.
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Red light, Blue light |
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B.
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Blue light, red light |
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C.
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Green light, red light |
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D.
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Blue light, green light |
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| 9. Three additive primary colors do NOT include: |
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A.
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Red |
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B.
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Blue |
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C.
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Green |
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D.
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Orange |
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| 10. The three subtractive primary colors do NOT include: |
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A.
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Cyan |
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B.
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Magenta |
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C.
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Orange |
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D.
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Yellow |
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| 11. The index of refraction is the ratio of the velocity of light in ____ to the velocity of light in _________: |
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A.
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air |
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B.
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time |
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C.
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a material |
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D.
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A&C |
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| 12. The index of refraction of hard resin is: |
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A.
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1.586 |
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B.
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1.660 |
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C.
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1.333 |
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D.
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1.499 |
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| 13. The index of refraction of polycarbonate is: |
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A.
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1.499 |
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B.
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1.586 |
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C.
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1.660 |
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D.
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1.333 |
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| 14. For practical purposes, optical infinity is a distance beyond: |
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A.
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1 m |
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B.
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2 m |
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C.
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4 m |
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D.
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6 m |
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| 15. Rays of light that spread out from their point source are: |
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A.
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Converging |
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B.
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Diverging |
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C.
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Slowing Down |
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D.
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Speeding Up |
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| 16. When light passes from one medium to another at an oblique angle, it generally is: |
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A.
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Diffracted |
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B.
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Refracted |
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C.
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Dissolved |
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D.
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Undeviated |
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| 17. Snell's law of refraction describes how much light is ___________ as it passes from one medium to another: |
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A.
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Refracted |
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B.
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Reflected |
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C.
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Absorbed |
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D.
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All of the above |
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| 18. During reflection, the angle of reflection is equal to the initial angle of: |
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A.
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Refraction |
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B.
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Diffraction |
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C.
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Incidence |
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D.
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Deviation |
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| 19. High-index lens materials generally reflect ______ light than hard resin: |
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A.
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Less |
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B.
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More |
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C.
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Equal amounts |
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D.
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None of the above |
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| 20. A prism deviates rays of light toward its: |
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A.
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Apex |
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B.
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Base |
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C.
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Dispersion |
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D.
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Side |
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| 21. A prism causes images to appear deviated toward its: |
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A.
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Apex |
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B.
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Base |
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C.
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Dispersion |
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D.
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Side |
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| 22. A complete, sharply defined shadow is known as a(n): |
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A.
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Reflection |
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B.
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Highlight |
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C.
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Umbra |
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D.
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Illumination |
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| 23. The distance from crest to crest of an electromagnetic wave is known as its: |
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A.
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Wavelength |
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B.
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Frequency |
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C.
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Amplitude |
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D.
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Intensity |
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| 24. The trichromatic theory of color vision refers to the perception of color by the eye using: |
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A.
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1 Photoreceptor |
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B.
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2 Photoreceptors |
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C.
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3 Photoreceptors |
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D.
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4 Photoreceptors |
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| 25. The breaking up of white light into its component colors is known as: |
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A.
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Absorption |
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B.
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Reflection |
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C.
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Vergence |
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D.
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Dispersion |
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| 26. A wave of light will have one diopter (1 D) of vergence at a distance of: |
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A.
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0.5 m |
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B.
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1.0 m |
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C.
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2.0 m |
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D.
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4.0 m |
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| 27. The symbol 'n' often used in Snell's law of refraction refers to: |
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A.
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Refractive Index |
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B.
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Angle of Deviation |
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C.
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Angle of Refraction |
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D.
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Angle of Reflection |
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| 28. Of the following angles, light will be deviated the most by a prism with an apical angle of: |
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A.
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-10° |
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B.
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10° |
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C.
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15° |
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D.
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20° |
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| 29. Specular reflection is most likely to occur off the surface of: |
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A.
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Concrete |
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B.
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Gravel |
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C.
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Dirt |
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D.
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Glass |
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| 30. The following term is NOT related to the particle-like nature of light |
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A.
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Photon |
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B.
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Quanta |
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C.
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Waves |
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D.
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Corpuscules |
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| 31. The subtle bending or spreading of light at a small opening or aperture is referred to as: |
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A.
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Scatter |
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B.
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Diffraction |
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C.
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Refraction |
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D.
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Interference |
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| 32. Two waves of light in phase combine to reinforce each other, the following |
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A.
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Destructive Interference |
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B.
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Out-of-Phase Interference |
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C.
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Pass Interference |
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D.
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Constructive Interference |
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| 33. The prismatic deviation produced by a prism with an apical angle of 10° and a refractive index of 1.500 is approximately: |
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A.
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5° |
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B.
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10° |
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C.
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15° |
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D.
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20° |
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| 34. Light scatter produced by Rayleigh scattering is ___________ to the wavelength (or color) of light: |
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A.
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Proportional |
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B.
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Equal |
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C.
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Inversely proportional |
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D.
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A square root |
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| 35. The following is NOT an additive primary color: |
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A.
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Cyan |
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B.
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Red |
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C.
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Green |
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D.
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Blue |
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| 36. According to the trichromatic theory of vision, the eye distinguishes color using: |
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A.
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4 Photoreceptors |
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B.
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3 Photoreceptors |
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C.
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2 Photoreceptors |
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D.
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1 Photoreceptor |
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| 37. The variation in the refractive index of a material as a function of the wavelength results in: |
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A.
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Dispersion |
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B.
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Interference |
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C.
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Diffraction |
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D.
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None of the Above |
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| 38. The number of vibrations of a wave per unit length of time is NOT associated with: |
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A.
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Hertz |
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B.
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Amplitude |
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C.
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Frequency |
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D.
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Cycles per Second |
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| 39. As the radius of curvature of a wavefront increases, the vergence of the wavefront: |
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A.
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Decreases |
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B.
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Increases |
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C.
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Steepens |
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D.
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Remains the Same |
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| 40. One nanometer is equal to: |
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A.
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One Million Meters |
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B.
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One Billion Meters |
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C.
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One Millionth of a Meter |
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D.
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One Billionth of a Meter |
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