Components of a Microscope

Question 1

Ocular/eye piece

Answer 1

Magnifies the image and has built n cross hairs

Question 2

Polarizer

Answer 2

Transmits plane polarizer light vibrating in a North/South direction. (PPL always reaches stage)

Question 3

Bertrand lens

Answer 3

An accessory used to obtain optical figures

Question 4

Analyzer

Answer 4

Transmits light vibrating only in an East/West direction
Affects light after it has passed through the sample

Question 5

Polars

Answer 5

Analyzer and Polarizer
XPL
when both are in position

Question 6

Gypsum plate

Answer 6

Used to show addition and subtraction of colours & indicates direction of slow or fast vibration
Also a tool to determine the elongation of the mineral or optic sign.(USED UNDER XPL)

Question 7

Objective lens

Answer 7

Main magnifying power of optical system.
3or 4

Question 8

Rotatable stage

Answer 8

Surface on which specimens are placed

Question 9

Condenser lens

Answer 9

Used to obtain interference figures. Makes light converge strongly and rotates into and out of optical system

Question 10

Illuminator

Answer 10

White light source for the microscope