polarizing microscopy

Question 1

what is polarizing microscopy

Answer 1

allows light to bend in certain direction and gives off colors specific to certain crystals

-uses to diagnose crystals in urine and synovial fluid

-lipids in urine

Question 2

can bend polarized light

Answer 2

anisotropic or birefringent

Question 3

2 polarizing filters

Answer 3

polarizer and analyzer

-put both together and stops direction of light

Question 4

polarizer

Answer 4

placed at bottom of microscope
-forces light to travel in left to right

Question 5

analyzer

Answer 5

placed at head of microscope
-forces light to move north to south

Question 6

birefringent material

Answer 6

-rotate direction of light that passes through
-appears bright against black background

Question 7

if substance rotates plane of polarized light clockwise

Answer 7

positive birefringence

Question 8

If substance rotates plane of polarized light counterclockwise

Answer 8

negative birefringence

Question 9

to detect another component we add a

Answer 9

compensator

Question 10

what does a compensator do

Answer 10

tells us which direction of light is bent in

-placed between analyzer and polarizer

has arrow to indicate direction

aligned 45 degrees

Question 11

most common compensator

Answer 11

red

Question 12

positive birefringent

Answer 12

-blue color when parallel to direction of compensator
-Yellow when perpendicular to compensator

Question 13

negative birefringent

Answer 13

○ Yellow when parallel
-Blue with perpendicular