Light: Chapter 1.11 and 1.12 Flashcards Preview

VS 203A: Optics > Light: Chapter 1.11 and 1.12 > Flashcards

Flashcards in Light: Chapter 1.11 and 1.12 Deck (22)
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1

Light has which properties?

- Ray
- Wavelike

2

What is the wavelength range of Visible Light?

~390 to 700 nm

3

Light is slower in which medium?

Air

4

What is the Law of Reflection?

θr = θi

5

What is Snell's Law in Refraction?

n1sinθ = n2sinθ

6

In what direction does light travel?

Left to right

7

What happens to the curvature with a Diverging Lens?

It is lost due to the increase in radius

8

How is the curvature with a Diverging Lens?

Always negative

9

What happens to the curvature with a Converging Lens?

It is gained due to the decrease in radius

10

List equation that describes relationship between wavelength and frequency:

λ = c/f

11

Frequency is in what units?

Cycles / s or Hz

12

What is equation used to determine the speed of light?

v = c / n

13

What is the equation used to determine wavelength of a particular material?

λm = λ / n

14

Most of the eye's optical power is in the

Cornea

15

The Optical Power of the eye is the function of

- Curvature of cornea
- Change of index

16

The point source of light functions to emit rays which are

Perpendicular to the wavefront

17

What happens to the wavefronts as we stray from the light source?

The wavefronts flatten at optical infinity, forming parallel light or collimated rays

18

What is the equation for Curvature (meters)?

1 / Radius

19

What is the unit of Diopters?

m-1

20

Myopes use which lens?

Diverging

21

Hyperopes use which lens?

Converging

22

What is the equation of Vergence?

(index of refraction) • (curvature)