Microscopes Flashcards
(20 cards)
What are the 2 types of microscopes
Simple and Compound
What are simple microscopes
Early microscopes that consist of single lens
What are compound microscopes and the 2 types
Contain more than one lens and are parfocal ( still focused when objectives are switched)
Two types are research and dissecting
What light does a research microscope use
uses transmitted light
What light does a dissecting microscope use
uses incident light
What kind of image does a dissecting microscope create
creates a virtual image (same)
What kind of objects does a dissecting microscope look at
used to look at solid objects
What’s the max a dissecting microscope can magnify up to
magnifies up to 30x
What kind of image does a research microscope create
A compound microscope that creates an inverted image
What kind of specimens is a research microscope used to look at
transparent specimens
What’s the max a research microscope can magnify up to
can magnify up to 400x
What are the 12 parts of a microscope also practice labelling
Eyepiece, body tube, rotating nosepiece, objective lenses, arm, stage, stage clips, diaphragm, condenser lens, power switch, light source, base, coarse adjustment knob, fine adjustment knob
What is the objective lens on low power
4x
What’s the objective lens on medium power
10x
What’s the objective lens on high power
40x
What is a virtual image
Created by a dissecting microscope, image is the same, incident light reflects off specimen
What is an inverted image
Created by a research microscope, using transmitted light, light passes through the specimen, imagine is upside down and backwards
What is low power field of view
4000 microns
What is medium power field of view
1500 microns
What is high power field of view
400 microns
