HISTOLOGY
EPITHELIAL TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to adjust the magnification
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to adjust the amount of light shining on the slide specimen
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to adjust the focus of the specimen
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to change the visible color of the specimen
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Detailed explanation-1: -Adjust the iris diaphragm until you have the proper amount of light with good contrast. It is very important that you reduce the light so that the details of the subject can be seen. Using too much light is the most common mistake that students make.
Detailed explanation-2: -Condenser Diaphragm-This diaphragm controls the amount of light entering the lens system. This feature is useful for viewing unstained biological specimens that are translucent. Reducing the amount of light improves contrast, making the specimen “stand out” against the background.
Detailed explanation-3: -Answer and Explanation: The amount of light entering a microscope may be adjusted by regulating the diaphragm, therefore the answer is b. The diaphragm, also called the iris diaphragm, adjusts the size and intensity of the cone of light that reaches the specimen.