INTRODUCTION
MICROSCOPE PARTS MAGNIFICATION RESOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Super Zoom.
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Coarse Adjustment Knob.
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Find Adjustment Knob.
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None of the above
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Detailed explanation-1: -CAUTION: NEVER, EVER, use the coarse adjustment knob with the high power objective. This could break the lens. Multiply the power of the ocular lens, by the power of the objective lens. 2.
Detailed explanation-2: -The answer is false. When focusing on high power while using a microscope, always use the fine adjustment knob to focus. This is because the working distance is extremely small and using the coarse adjustment knob risks cracking the glass slide or objective lens.
Detailed explanation-3: -4. COARSE ADJUSTMENT KNOB-A rapid control which allows for quick focusing by moving the objective lens or stage up and down. It is used for initial focusing.
Detailed explanation-4: -If you focus the high power objectives with the coarse focus knob, then you risk slamming the objective into the slide, risking the damage of both. Some high power objectives are spring-loaded, with a front-part that retracts when touched by the slide. This is a protective mechanism.
Detailed explanation-5: -The coarse adjustment knob is used ONLY with the low power (4X, 10X) objectives. When focusing under the 40X or 100X objective, ONLY use the fine adjustment, never the coarse adjustment.