Microscope

Question 1

What does the ocular lenses do?

Answer 1

​THE EYEPIECE – FORMS AN IMAGE THAT CAN BE VISUALISED BY THE EYE OR CAMERA AND HOUSES THE OCULAR LENS 10 OR 15 X MAGNIFICATION (CAN BE INTERCHANGEABLE AND ADJUSTABLE)​

Question 2

What does the objective lenses do?

Answer 2

THE REVOLVING NOSE PIECE HOLDS THE OBJECTIVE LENSES, THESE ARE THE OPTICAL ELEMENTS CLOSEST TO THE SPECIMEN. ​

Question 3

What are the ocular lenses sizes used?

Answer 3

4 X scanning power​
10 X (LPO)​
40 X (HPO and dry)​
100 X (OIO)​

Question 4

What does the condenser/diaphragm do?

Answer 4

It contains a set of lenses that focuses light onto the specimen. It alters the contrast of the image seen in the microscope.

Question 5

Why is oil immersion done?

Answer 5

WHY? = LIGHT REFRACTION – THE LIGHT BENDS – YOU LOSE THE LIGHT AND LOSE IMAGE DETAIL.​

= USING IMMERSION OIL = OIL AND GLASS HAVE SAME REFRACTIVE INDEX SO MORE LIGHT CAN BEAM THROUGH = SHARPER IMAGE​

​