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Worksheets

MICRO LAB - MICROSCOPE

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

An optical instrument with two lens systems, the objective and the eyepiece or ocular.

a)

Simple microscope

b)

Compound microscope

c)

Stereomicroscope

d)

Confocal microscope

2.

Found below the stage that holds the condenser above, and the iris diaphragm below.

a)

Body tube

b)

Sub-stage

c)

Revolving nosepiece

d)

Abbe condenser

3.

Serves as support which is the post or vertical extension of the base and to which the arm is attached.

a)

Base

b)

Pillar

c)

Inclination point

d)

Arm

4.

The movable hinge that attaches the frame of the microscope to the base. It is used for tilting the microscope whenever necessary for the convenience of the user.

a)

Pillar

b)

Inclination point

c)

Arm

d)

Base

5.

Attached to the base of the body tube. It holds the objectives.

a)

Revolving nosepiece

b)

Draw tube

c)

Body tube

d)

Arm

6.

Knob used for slow or little movement of the body tube when focusing high power objectives as well as the higher powered lenses. It is used to get a sharper focus of the object under the low power objective.

a)

Coarse adjustment knob

b)

Fine adjustment knob

c)

Mirror rack

d)

Abbe condenser

e)

Iris diaphragm

7.

A type of mirror used when the source of light (natural/artificial) is of low light.

a)

Concave mirror

b)

Plane mirror

8.

A type of mirror used when the source of light is very bright.

a)

Concave mirror

b)

Plane mirror

9.

Used to concentrate the reflected light form the mirror to the object or specimen being examined.

a)

Coarse adjustment knob

b)

Fine adjustment knob

c)

Mirror rack

d)

Abbe condenser

e)

Iris diaphragm

10.

It controls the amount of light striking the object with the use of a lever.

a)

Coarse adjustment knob

b)

Fine adjustment knob

c)

Mirror rack

d)

Abbe condenser

e)

Iris diaphragm

11.

The detachable cylinder situated on the top of the draw tube. It is equipped with a lens that magnifies the object several times and enables one to see the specimen by looking through it. Sometimes it is provided with a pointer which is used in pointing at specific parts of the specimen.

a)

Eyepiece

b)

LPO

c)

HPO

d)

Draw tube

e)

Body tube

12.

A long cylinder lens of a high magnifying power. It is used to study detailed part of the specimen.

a)

LPO

b)

HPO

c)

OIO

d)

Eyepiece

13.

A long cylinder with a lens of a very high magnifying water. It focuses very close to the slide and a small drop of special oil is needed.

a)

LPO

b)

HPO

c)

OIO

d)

Eyepiece

14.

Always carry the microscope by using both hands holding its base.

a)

True

b)

False

15.

If the magnifying power of the eyepiece is 10x and the magnifying power of the objective used is 40x, What is the total magnification?

(a)  

16.

Identify the part.

a)

Base

b)

Pillar

c)

Arm

d)

Inclination point

17.

Identify the part:

a)

Fine adjusment knob

b)

Coarse adjustment knob

c)

Diaphragm

d)

Condenser

18.

Identify the part:

a)

Fine adjusment knob

b)

Coarse adjustment knob

c)

Diaphragm

d)

Condenser

19.

Identify the part:

a)

Eyepiece

b)

Objective lenses

c)

Mirror

d)

Body tube

20.

Xylol is used as

a)

oil for immersion

b)

cleansing for oil lens

c)

lubricant

d)

cleansing of the eyepiece

21.

Which of the following is NOT part of the Mechanical Parts of the Microscope?

a)

Arm

b)

Condenser

c)

Inclination joint

d)

Draw tube

22.

Which of the following is NOT part of the ILLUMINATING PARTS:

a)

Mirror

b)

Objectives

c)

Condenser

d)

Diaphragm

23.

Adjustment knobs belong to the :

a)

mechanical parts

b)

illuminating part

c)

magnifying part

24.

Diaphragm belongs to the:

a)

mechanical part

b)

illuminating part

c)

magnifying part

25.

Mirror rack belongs to:

a)

mechanical part

b)

illuminating part

c)

magnifying part