During microscopic observation of a specimen,the amount of light that is allowed to pass through the specimen is controlled by the:
A)condenser
B)objective lens
C)iris diaphragm
D)ocular lens

Question

Quizplus · Accepted Answer

The iris diaphragm controls the amount of light that passes through the specimen in a microscope. It is located just below the stage and can be adjusted to increase or decrease the amount of light that enters the objective lens. The condenser focuses the light onto the specimen, the objective lens magnifies the image, and the ocular lens further magnifies the image viewed through the eyepiece, but they do not control the amount of light that is allowed to pass through the specimen.

During Microscopic Observation of a Specimen,the Amount of Light That