At Which Magnification Should the Coarse Focus Adjustment Be Used

The coarse focus knobs. Why Is It Important Not To Use The Coarse Focus While Using High Magnification.

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B place a drop of oil on the slide.

. This means that the coarse focus can be used to get an approximate idea of where the object is located. C all of the above. Only use the fine focus with the 40X and 100X objectives.

When the microscope is in low power you are viewing objects that are about 40x larger than the object you are seeing. When in high power use the coarse adjustment the knob smaller than the. Start with the lowest objective coarse adjustment then adjust your focus to a better resolution with the fine adjustment.

Question 15 - At which magnifications should the coarse focus be used. The coarse focus knob should only be used with the 4x low power objective in place. 4X and 10X E.

However when using higher magnifications such as 100x or 400x this is not. The type of microscope we use in class. Before the oil immersion lens is rotated into place you should.

All of the choices are correct. The fine focus know can be used with all objectives including the 4x but the effect will not be visible with this latter one you will have to turn the knob many times which is inconvenient. True or falsethe coarse focus adjustment knob should only be used with the scanning objective lens.

The coarse adjustment knob should never be used when viewing in high power with a compound microscope. A center the object of interest and add a drop of oil to slide. The coarse adjustment knob may move the lens too far too fast and the slide may crack andor the object be squashed.

D center the object of interest. Can use the coarse focus with the 4X and 10X objectives. Coarse adj to more accurately focus on the subject.

E lower the stage with use of the coarse focus adjustment knob. All of the choices are correct. Question 16 - At which magnifications should the fine focus adjustment be used.

4X and 10X E. Using the fine adjustment lens will bring the object into focus much more. Visit the Microscopy Shop.

The three properties of a microscope include.

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