If a Student Uses a Parfocal Compound Light Microscope,which of the Following

question 12

Multiple Choice

If a student uses a parfocal compound light microscope,which of the following would be true?

• A) The focus will have to be adjusted using the mechanical stage control knob.
• B) After the initial focus adjustments are made, the image should remain in focus as the specimen is viewed with each objective lens.
• C) The focus will have to be adjusted using the coarse adjustment knob.
• D) The focus will have to be adjusted using the fine adjustment knob.

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Definitions:

Common Cold

A viral infection of the upper respiratory tract characterised by symptoms like sneezing, sore throat, and coughing.

Lung Diseases

A broad category of disorders, illnesses, or conditions affecting the lungs and their ability to function properly.

Environmental Dust

Small particles present in the air from natural sources such as soil, pollen, molds, and man-made activities, which can pose health risks when inhaled.

Occupational Dust

Fine particles generated in workplaces from various processes like grinding, woodworking, mining, and manufacturing, potentially harmful when inhaled or ingested, affecting workers' health.