MICROSCOPE worksheet.docx - MICROSCOPE Label the parts...

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MICROSCOPE Label the parts
Microscope Use: 15. When focusing a specimen, you should always start with the _____________ objective.16. When using the high-power objective, only the _______________ knob should be used.17. The type of microscope used in most science classes is the ______________ microscope.18. You should carry the microscope by the ____________ and the ______________.19. The objectives are attached to what part of the microscope (it can be rotated to click lenses into place?) ____________________________________________ 20. A microscope has an ocular objective of 10x and a high-power objective of 50x, what is the microscope's total magnification? ______________Magnification and resolution of a microscope:21. Fill the table below Objective lens Name of the Objective Ocular lens Total Magnification 4x 10X 40X 100X 22. Two lenses with N.A of 0.75 and 1.25 are used to view a specimen. They are using a light with wavelength of 540nma. What is dmin?
d. Write the formula for d minc. which of these lenses will give higher resolutionNext 1.Which adjustment knob should you use on the high power? _________________________2.How do you prevent the slide from falling off the stage? ____________________________ _______________________________________________________ ___________________ 3. Which adjustment knob is used for bringing the specimen into focus? _________________4.Which adjustment knob is used for sharpening the image of the specimen after it is focused? _______________________5.What is the function of the field iris diaphragm and aperture iris diaphragm? __________________________________________6.How holds the objective lenses and how do you change the objective lenses? ________________________________________ _______________________________________________________ ___________________

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