OCPP 102 2.1 UPDATED ACTUAL Questions and CORRECT Answers
1. more The higher the index of refraction the a material will bend
light rays.
2. less, thinner A higher index lens will require material and be .
3. Index of refraction The speed of light in air (vacuum) divided by the speed of light in a
medium.
4. Speed of light in air / Index of refraction (n) =
speed of light in medium
5. 186000 miles per second speed of light in air
6. 1.00 Index of refraction of air (to the 2nd decimal)
7. 1.31 Index of refraction of ice (to the 2nd decimal)
8. 1.33 Index of refraction of water (to the 2nd decimal)
9. 2.41 Index of refraction of diamond (to the 2nd decimal)
10. Refraction What is responsible for image formation by the lenses and the eye?
11. thinner The higher the index of refraction, the the lens.
12. less curvature and thick- As the index of refraction increases, a lens of a given prescription and
ness diameter needs to produce the same power.
13. (Earnest) Abbe, (Carl) Who developed a mathematical formula to determine the amount of
Zeiss, and (Otto) Schott chromatic aberration a lens material will produce?
14. higher The the Abbe number, the better the optics of the material
15. chromatic aberrations Caused by light passing through a refractive medium and breaking
down into its component colors
, 16. Nu valve, V number Alternative names for Abbe value
17. Abbe valve The reciprocal of the dispersive power of the lens
18. 20-60 Abbe numbers range from
19. higher The the Abbe number, the less chromatic dispersion oc-
curs.
20. Abbe value The measure of a material's characteristic of breaking light into its
component colors
21. reduction, colored ghost If the color aberration is significant enough, the lens
images wearer will likely see some in vision quality and possibly
around objects.
22. wavelengths The index of refraction of a material varies with .
23. focal points Different wavelengths of light are focused at different
by a lens.
24. All lenses Which lenses have chromatic aberrations?
25. Hyperopes, along the op- are not as sensitive to the "rainbows" because they travel
tical axis of the lens .
26. Myopes, around the generally will be very sensitive to the "rainbows"
edges .
27. more The higher the minus, the noticeable the "rainbows"
28. more color Referring to ABBE value, a larger lens will cause .
29. 59 ABBE value of crown
1. more The higher the index of refraction the a material will bend
light rays.
2. less, thinner A higher index lens will require material and be .
3. Index of refraction The speed of light in air (vacuum) divided by the speed of light in a
medium.
4. Speed of light in air / Index of refraction (n) =
speed of light in medium
5. 186000 miles per second speed of light in air
6. 1.00 Index of refraction of air (to the 2nd decimal)
7. 1.31 Index of refraction of ice (to the 2nd decimal)
8. 1.33 Index of refraction of water (to the 2nd decimal)
9. 2.41 Index of refraction of diamond (to the 2nd decimal)
10. Refraction What is responsible for image formation by the lenses and the eye?
11. thinner The higher the index of refraction, the the lens.
12. less curvature and thick- As the index of refraction increases, a lens of a given prescription and
ness diameter needs to produce the same power.
13. (Earnest) Abbe, (Carl) Who developed a mathematical formula to determine the amount of
Zeiss, and (Otto) Schott chromatic aberration a lens material will produce?
14. higher The the Abbe number, the better the optics of the material
15. chromatic aberrations Caused by light passing through a refractive medium and breaking
down into its component colors
, 16. Nu valve, V number Alternative names for Abbe value
17. Abbe valve The reciprocal of the dispersive power of the lens
18. 20-60 Abbe numbers range from
19. higher The the Abbe number, the less chromatic dispersion oc-
curs.
20. Abbe value The measure of a material's characteristic of breaking light into its
component colors
21. reduction, colored ghost If the color aberration is significant enough, the lens
images wearer will likely see some in vision quality and possibly
around objects.
22. wavelengths The index of refraction of a material varies with .
23. focal points Different wavelengths of light are focused at different
by a lens.
24. All lenses Which lenses have chromatic aberrations?
25. Hyperopes, along the op- are not as sensitive to the "rainbows" because they travel
tical axis of the lens .
26. Myopes, around the generally will be very sensitive to the "rainbows"
edges .
27. more The higher the minus, the noticeable the "rainbows"
28. more color Referring to ABBE value, a larger lens will cause .
29. 59 ABBE value of crown
