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Questions and Answers
Why is oil used on the slide when examining with the oil-immersion objective?
Why is oil used on the slide when examining with the oil-immersion objective?
- To decrease image sharpness for better observation
- To protect the lens from dust particles on the slide
- To reduce light refraction between air and glass (correct)
- To increase the working distance between the lens and the slide
What is the purpose of using an oil-immersion objective when studying microbes?
What is the purpose of using an oil-immersion objective when studying microbes?
- To make the specimen appear larger than its actual size
- To magnify the specimen without using any immersion medium
- To clearly observe fine details of microbial morphology (correct)
- To prevent image distortion due to excessive light refraction
Why should the body tube of the microscope not be lowered while looking through the ocular lens?
Why should the body tube of the microscope not be lowered while looking through the ocular lens?
- To maintain a specific working distance between the lens and the slide (correct)
- To protect the slide from accidental staining
- To increase the magnification level of the microscope
- To prevent dust particles from entering the ocular lens
What does a high-power objective lens do to image quality in a microscope?
What does a high-power objective lens do to image quality in a microscope?
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Which component of a microscope is crucial for observing fine details in biological samples at high magnification?
Which component of a microscope is crucial for observing fine details in biological samples at high magnification?
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What happens to image quality if there is air between a high-power objective lens and a slide?
What happens to image quality if there is air between a high-power objective lens and a slide?
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