microscopes

Question 1

how does the mirror work on a microscope

Answer 1

the mirror can be a light source and reflects the light from the room upwards
the light passes to the objective and eyepiece lens and the light rays spread through so we can see the image

Question 2

what magnifications does the objective lens have

Answer 2

4x, 10x, 40x

Question 3

what magnifications does the eyepiece have

Answer 3

10x

Question 4

stage 1 - using microscope

Answer 4

clip the slide onto the stage

Question 5

stage 2

Answer 5

select lowest power objective lens and position the objective lens so that it almost touches the slide by turning the course focusing knob, make sure your looking out to the side whilst doing so

Question 6

stage 3

Answer 6

when it almost touches stop turning the dial
now look down at the eyepiece and turn the course dial so there is an increased distance between the objective and slide until cells are in focus

Question 7

stage 4

Answer 7

use fine focusing dial to bring cells into a clear focus

Question 8

what is the equation for total magnification

Answer 8

objective mag x eyepiece mag

Question 9

what is the equation for magnification

Answer 9

image size divided by object size