OCPP 102 1.2 UPDATED ACTUAL Questions and CORRECT Answers
1. law of reflection the angle of incidence is equal to the angle of reflection
2. a straight line Unless interrupted, a single ray of light travels in .
3. predictable angle If the light strikes a reflective object, the ray of light bounces back
at a .
4. back on itself. If light strikes a surface at a perpendicular line (the normal), it is
reflected where?
5. the normal The angle of incidence and the angle of reflection are both mea-
sured from .
6. critical angle the angle of incidence that produces an angle of refraction of 90
degrees
7. The normal A line perpendicular to the surface where the Ray strikes the surface
8. refracted Rays exiting the material at an angle less than the critical angle will
be .
9. Totally reflected internally Rays incident on the interface at an angle greater than the critical
angle will be .
10. i Angle of incidence is symbolized by
11. n Index of refractive medium is symbolized by
12. sin i = n2/n1 Sin i = (formula)
13. refracted out of When the angle of incident light ray is less than the critical angle,
both are the medium.
14. 90 degrees
, When the angle of incident light rays is equal to the critical angle,
the angle of refraction is exactly and the reflected ray
just grazes the surface.
15. totally internally reflected When the angle of incident light rays is greater than the critical
angle they are within the optical medium.
16. Total internal reflection is the guiding principle that helps transmit light
through a fiber optic cable.
17. away from When light travels from a medium of greater index into a medium
of lesser index, it is refracted the normal.
18. reflected back For all the angles of incidence greater than the critical angle, the
refracted rays are into the medium of index (They
don't leave the medium)
19. total internal reflection Rainbows are a result of .
20. Dimmer (less refraction) As the angle of incidence increases from 0 to greater angles the
REFRACTED ray becomes .
21. Brighter (more reflection) As the angle of incidence increases from 0 to greater angles the
REFLECTED ray becomes .
22. 90 degrees As the angle of incidence increases from 0 to greater angles the
angle of refraction approaches until finally a refracted
ray can no longer be seen.
23. Destructive wavelengths Waves that are moving in the same direction but the crests are out
of phase.
24. destructive interference is the principle of an AR coating.
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1. law of reflection the angle of incidence is equal to the angle of reflection
2. a straight line Unless interrupted, a single ray of light travels in .
3. predictable angle If the light strikes a reflective object, the ray of light bounces back
at a .
4. back on itself. If light strikes a surface at a perpendicular line (the normal), it is
reflected where?
5. the normal The angle of incidence and the angle of reflection are both mea-
sured from .
6. critical angle the angle of incidence that produces an angle of refraction of 90
degrees
7. The normal A line perpendicular to the surface where the Ray strikes the surface
8. refracted Rays exiting the material at an angle less than the critical angle will
be .
9. Totally reflected internally Rays incident on the interface at an angle greater than the critical
angle will be .
10. i Angle of incidence is symbolized by
11. n Index of refractive medium is symbolized by
12. sin i = n2/n1 Sin i = (formula)
13. refracted out of When the angle of incident light ray is less than the critical angle,
both are the medium.
14. 90 degrees
, When the angle of incident light rays is equal to the critical angle,
the angle of refraction is exactly and the reflected ray
just grazes the surface.
15. totally internally reflected When the angle of incident light rays is greater than the critical
angle they are within the optical medium.
16. Total internal reflection is the guiding principle that helps transmit light
through a fiber optic cable.
17. away from When light travels from a medium of greater index into a medium
of lesser index, it is refracted the normal.
18. reflected back For all the angles of incidence greater than the critical angle, the
refracted rays are into the medium of index (They
don't leave the medium)
19. total internal reflection Rainbows are a result of .
20. Dimmer (less refraction) As the angle of incidence increases from 0 to greater angles the
REFRACTED ray becomes .
21. Brighter (more reflection) As the angle of incidence increases from 0 to greater angles the
REFLECTED ray becomes .
22. 90 degrees As the angle of incidence increases from 0 to greater angles the
angle of refraction approaches until finally a refracted
ray can no longer be seen.
23. Destructive wavelengths Waves that are moving in the same direction but the crests are out
of phase.
24. destructive interference is the principle of an AR coating.
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