Why must you be careful when you are focusing with the high-powered lens?

Quesiton : Why must you be careful when you are focusing with the high-powered lens?

Answer: Start with the lowest objective (coarse adjustment) then adjust your focus to a better resolution with the fine adjustment.

Why must you be careful when you are focusing with the high-powered lens? When you are focusing the high power objective lens you might damage the lens if you adjust it too closely and/or damage the object/specimen you are observing. To avoid this look to the side of the microscope when adjusting the coarse knob to make sure the high power objective lens isn't too close.:) How can the answer be improved? Why must you be careful when you are focusing the high-power objective lens what precautions should you take? When you are focusing the high power objective lens you might damage the lens if you adjust it too closely and/or damage the object/specimen you are observing. Why must you be careful when you are focusing with the high-powered lens? Start with the lowest objective (coarse adjustment) then adjust your focus to a better resolution with the fine adjustment. Describe the proper procedure for focusing the microscope using the coarse and fine adjustment. Because you are at the highest magnification only turn the fine adjustment knob when you are using the high-powered objective lens and not the coarse adjustment. Otherwise y … ou risk getting your sample out of focus and you will probably only be able to refocusby starting with the lowest power objective lens. If you hold it in the middle you will crush the specimen or get fingerprints on sample. Why a specimen to be viewed under the microscope must be thin? It has to be thin enough to allow the light to pass through. Sun Apr 22 2007 00:00:00 GMT+0530 (IST) · Hi. A really high powered lens may use a drop of clear oil to improve light transmission but the focusing technique is still the same. Move the lens as close as possible while looking at the side. Make sure you know which way to turn the focus knob to … Why must you be careful when you are focusing the high-power objective lens what precautions should you take? When you are focusing the high power objective lens you might damage the lens if you adjust it too closely and/or damage the object/specimen you are observing. On a microscope you have to make sure to use the fine focus instead of the coarse focus. If you are not careful and you do use the coarse focus it will move the barrel down and the lens may crush your slide/slide cover. Which is very very bad. When you change from low power to high power on a microscope the high-power objective lens moves directly over the specimen and the low-power objective lens rotates away from the specimen. This change alters the magnification of a specimen the light intensity area of the field of view depth of field working distance and resolution. objective lens is not in place there will be no light visible through the nosepiece. h. The objective lenses called the low- and high-power lenses add to the magnification of the object you are viewing. The low-power objective lens usually has a magnification power of 10x. The high-power objective lens usually has a magnification power of 40X. 0b ectiv. lens 1 ox lox 1 ox 50X Total Ma nification 8. Why must you be careful when you are focusing with the high-pov.er lens? What precautions should you take? 9 Describe the procedure for focusing a rrûcroscope starting with the coarse adjustment knob and rmving to the fine adjustrrwnt knob.