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NAO (Physics) EXAM REVIEW QUESTIONS AND ANSWERS RATED A.
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NAO (Physics) EXAM REVIEW QUESTIONS AND ANSWERS RATED A.
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NAO (Physics) EXAM REVIEW QUESTIONS ANDANSWERS RATED A.
Formula for Metric System
Correct Answer -1m = 10dm = 100cm = 1000mm
What is one-billionth of a meter?
Correct Answer -nanometer
Visible light ranges from _____ nanometers.
Correct Answer -400 - 700 nanometers
Which color has the longest wavelength, travels the fastest, bends the
least, and has the least energy?
Correct Answer -Red
Which color has the shortest wavelength, travels the slowest, bends the
most, and has the most energy?
Correct Answer -Violet
UVA rays ranges from _______ nanometers and are absorbed by the
_________ ______.
Correct Answer -(315-400), crystalline lens
UVB rays ranges from ______ nanometers and are absorbed by the
________.
Correct Answer -(275-330), cornea
, UVC rays are absorbed by the _____________ and generally poses no
ocular threats.
Correct Answer -Atmosphere
Infrared wavelengths are _____ than the color red's wavelengths.
Correct Answer -Longer
How can you calculate the speed of light in a new medium?
Correct Answer -n = c/v
Define n = c/v
Correct Answer -Index of refraction = speed of light in vacuum / speed of
light in new medium
When a ray of light meets a different substance what 4 things occur?
Correct Answer -a. Some light will be reflected at the boundary.
b. Some are scattered.
c. Some are absorbed.
d. The rest will travel through new substance.
Define Incident Ray
Correct Answer -a ray of light that strikes a surface
Angle of Incidence
Correct Answer -the angle between the incident ray and the normal
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