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Flashcards in Lecture 5 repeat Deck (14)
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0
Q

light striking a perpendicular surface will continue on through….with or without bending?

A

without

1
Q

the bending of light waves at an angulated surface of a transparent material is known as this?

A

Refraction

2
Q

the degree of refraction means what if you put it simply?

A

the amount of bending

3
Q

the Amount of bending depends on what?

A
  1. the degree of angulation between interface and the entering light wave
  2. ratio of the refractive indices and transparent media
4
Q

1 diopter is equivalent to?

A

1 meter divided by the focal length of a lens

5
Q

a measure in Diopters of how much a lens bends light waves is the?

A

Refractive power

6
Q

What is the Refractive index?

A

the ratio of light velocity in air to light velocity traveling through a substance

7
Q

what is the Refractive index of air?

A

1.00

8
Q

The point through which all parallel rays of light will pass after passing through each part of the lens

A

Focal point

9
Q

The focal length is the distance from the center of the lens to?

A

the focal point

10
Q

an object projected on the Retina, inside the eye, will be seen as?

A

reversed and inverted

11
Q

what is the function of the Iris?

A

to control the amount of light entering the eye from darkness to light conditions

12
Q

pupillary diameter is indirectly proportional to?

A

the depth of lens focus. as depth increases, diameter decreases.

13
Q

the total refractive power of the Human eye is approximately?

A

59 Diopters