Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/60

Click to flip

60 Cards in this Set

  • Front
  • Back
Which surface is easier to see, wet specular surface or dry diffuse surface?
Dry diffuse surface because it's rough
Ray of light travels from ________ medium to ________ medium bends toward the normal
less dense; more dense
Ray of light travels from ________ medium to ________ medium bends away from the normal
more dense; less dense
Incident ray, reflected ray and normal at the point of incidence all lie in same plane
Law of Reflection
Angle of reflection is equal to _______
Angle of incidence
When angle of incidence in denser medium is greater than critical angle in that medium
Total Internal Reflection
Splitting of white light into its component colors (ROYGBIV)
Dispersion
Concave mirror rays __________
Converge
Convex mirror rays __________
Diverge
Focal length = ___________
1/2 radius of curvature
Smaller, upright, virtual is what type mirror
Convex
Inverted image is what type mirror
Concave
larger, upright, virtual mirror
O < f
image formed at infinity, larger, real, inverted mirror
O = f
inverted, larger, real mirror
R > O > f
same size, real, inverted mirror
O = R
smaller, inverted, real mirror
O > R
image formed at focal point, smaller, real, inverted mirror
O = infinity
virtual lense has _________ focal length
negative
real lense has _________ focal length
positive
Mirror has real image on what side?
same
can virutal images reflect on screen?
No
Virtual images are on what side for lenses?
same
Real images are on what side for lenses?
opposite
Lense/Mirror formula for calculating focal length
1/f = 1/O + 1/I
If f > O+ ______ lense
convex
If f< -O _______ lense
concave
If f> O+ _______ mirror
concave
If f < -O _______ mirror
convex
what is the formula for strength of a lense?
S = 1/f in meters
How is strength of a lense measured?
in diopters
the eye relaxes to see _____
far away
the eye contract to see _____
near
How do you calculate accomodation of the eye?
L2R - f/f x 100
Glaucoma is?
excess fluid pressure ersolved through surgery to drain
Cataracts is?
lense opaque and dirty
Spherical abbaration is?
blurred focal point
corrective lense forms image on _______
outside
effective system forms image on________
retina
Nearsighted means?
eyeball to long, focal length too short
Farsighted means?
focal length too long, eyeball too short (hyperopia)
What is presbyopia?
weakening of the cilliary muscles--nearsighted
How do you find the effective focal length?
1/f(eff) = 1/f(eye) + 1/f(corr)
How do you find effective strength of eye?
S(eff) = S(eye) + S(corr)
What is electromagnetic spectrum?
family of waves that have same speed in a vacuum.
C = 3 x 10^8 m/s
How do you find Atomic #?
Number of e- or p+
How do you find Mass #?
Atomic # + # neutrons
Which wave is stronger, infrared or cosmic rays?
Infrared
Which wave is stronger, radiowaves or UV rays?
radiowaves
Coulombs force says what? What does this mean?
CRF > SNF; nuclear stable
When CRF > SNF what happens?
nuclear instability; weak nuc. force responsible
Alpha decay is?
4 over 2
Beta electron decay is?
0 over -1
Beta positron decay is?
0 over +1
Gamma decay is?
0 over 0
How do you find Qf?
Qi/2^n
How do you find T?
T = n x half life
How do you find n?
log (Qi/Qf) / log 2
Half life involves?
mass, particles and volume
How do you find T(eff)?
T(eff) =
1/T(eff) = 1/Tp + 1/Tb