a.
To explain: The steps taken to correct the problem “inability to bring the specimen into sharp focus”.
Introduction: The microscope is an instrument used to observe the smaller structures that are not visible to the unaided human eye. The base, the arm, and the head (or body tube) are the three basic parts of the microscope to which all the other microscopic parts are attached. The other parts include ocular and objective lenses, stage, mechanical stage, coarse and fine focus knobs, Abbe condenser, iris diaphragm, and substage light.
b.
To explain: The steps taken to correct the problem “insufficient light while viewing the specimen”.
c.
To explain: The steps taken to correct the problem “artifacts in the microscopic field”.
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