Parts of a compound microscope - Lab 1

Question 1

Simple Microscope

Answer 1

no objectives
only one magnifying lens

Question 2

Compound microscope

Answer 2

2 magnifying lenses
objectives
ocular/eye piece

Question 3

Micro means

Answer 3

tiny

Question 4

Scope means

Answer 4

to look at

Question 5

Simple microscope has (how many lens)

Answer 5

only one type of
magnifying lens known as ocular/eye lens

Question 6

The compound microscope has

Answer 6

multiple
lenses for magnifying objects.

Question 7

Compound light bright field microscope can be classified into:

Answer 7

Upright compound microscope
&
Inverted compound microscope.

Question 8

According to the number of eye pieces, the
compound microscope can be:

Answer 8

Monocular microscope
Binocular microscope
Trinocular microscope

Question 9

Electron microscope vs light microscope.

Answer 9

The magnification of the electron microscope is greater than the light microscope.

Question 10

The common objective lenses:

Answer 10

4x - Scanning lens (red)
10x - low power lens (yellow)
40x high dry lens (blue)
100x- oil immersion lens (black)

Question 11

the eye (ocular) piece (lens):

Answer 11

10x or 15x

Question 12

The maximum magnification of light microscopes
is usually:

Answer 12

1000 or 1500

Question 13

Maximum resolution of light microscope:

Answer 13

200nm (0.2)

Question 14

Total magnification =

Answer 14

Magnification of ocular lens x objective lens

Question 15

Numerical aperture

Answer 15

(NA)= n×sin(α)

Question 16

Resolution

Answer 16

(r) = 0.61λ / NA

Question 17

Refractive index of air =

Answer 17

1

Question 18

Refractive index for water =

Answer 18

1.33

Question 19

Refractive index for biological objects =

Answer 19

1.37-1.39

Question 20

Refractive index for Glass

Answer 20

1.57

Question 21

Refractive index of immersion oil

Answer 21

1.52