GENERAL HISTOLOGY

INTRODUCTION

MICROSCOPE PARTS MAGNIFICATION RESOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the purpose of the diaphragm on the microscope?
A
It is the light source
B
It regulates the amount of light
C
Supports the stage
D
Used for first focusing
Explanation: 

Detailed explanation-1: -Condenser Diaphragm-the lens system beneath the microscope stage, positioned to concentrate light correctly on the specimen and direct the light rays into the objective.

Detailed explanation-2: -Iris Diaphragm controls the amount of light reaching the specimen. It is located above the condenser and below the stage. Most high quality microscopes include an Abbe condenser with an iris diaphragm. Combined, they control both the focus and quantity of light applied to the specimen.

Detailed explanation-3: -IRIS DIAPHRAGM CONTROL-A lever (or rotating disk) that adjusts the amount of light illuminating the slide.

Detailed explanation-4: -Between the light source and the condenser is the iris diaphragm, which can be opened and closed by means of a lever; thereby regulating the amount of light entering the condenser. Excessive illumination may actually obscure the specimen because of lack of contrast.

There is 1 question to complete.