Light/laws of optics/image formation/Vergence relationship

Question 1

object vergence

Answer 1

the reciprocal of the distance in meters to an object
L=n/l
n=index of refraction
L=vergence
l = distance from object emitting light

Question 2

image vergence

Answer 2

L'=n'/l'
L'=vergence of image
n= index of refraction
l' = distance from the refracting surface to the image
real should be positive
virtual should be negative

Question 3

vergence relationship

Answer 3

the quantified value of amount of divergence or convergence
object vergence + surface power = image vergence
L + F = L’

Question 4

Lateral magnification

Answer 4

equal to object vergence
ML=image size/object size=object vergence/image vergence
OR
ML=L/L’

Question 5

virtual image

Answer 5

image that is created by one or more virtual rays
diverging rays
not focusable on a screen
erect

Question 6

real image

Answer 6

image created with no virtual rays
converging rays
focus-able on a screen
inverted

Question 7

secondary focal length

Answer 7

the point to which the light converges or diverges
f’=n’/F
f’=secondary focal lenght
n’=index of refraction of secondary medium
F=power of surface

Question 8

primary focal length

Answer 8

the point to which the light converges or diverges in reverse direction
f=n’/F
n’ = index of refraction of primary medium

Question 9

Power and radius

Answer 9

F=n’-n/r

Question 10

dioptic power (refractive power)

Answer 10

F=n’/f’

Question 11

snell’s law

Answer 11

nsin(pheta)=n’sin(pheta’)

Question 12

Optical infinity

Answer 12

Depends on what you are working on