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Turning the coarse adjustment knob on a microscope upward and downward shifts the stage or objective lenses in larger increments to focus on the specimen quickly. This adjustment allows you to roughly bring the specimen into focus before using the fine adjustment knob for a sharper focus.
Racking downwards the coarse focusing knob while looking down the microscope can damage the lens or slide due to sudden movement or impact. It can also cause the lens to hit the slide, leading to potential damage to both the lens and the object being observed. Additionally, this action may result in a loss of focus and disrupt your observation.
In a compound microscope, the body tube is moved up and down for focusing by turning the coarse adjustment knob. The stage remains stationary during this process. The coarse adjustment knob controls the position of the body tube, which contains the objective lens, to bring the specimen into focus.
Turning the coarse adjustment knob when observing at high power magnification can cause the objective lens to hit the slide, potentially damaging the specimen or the lens. It can also result in a sudden shift in focus, making it difficult to observe the specimen clearly. It is recommended to use the fine adjustment knob for precision focusing at high power magnification.
The coarse focus knob moves the body tube up and down to bring the object into view of the microscope. By turning the knob clockwise or counterclockwise, the distance between the objective lens and the specimen can be adjusted to focus the image.
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When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
Turning the coarse adjustment knob of a microscope downwards brings the objective lens closer to the specimen, allowing for initial focusing at low magnification. This is useful for quickly bringing the specimen into view. Turning the coarse adjustment knob upwards moves the objective lens away from the specimen, enabling a higher focal point for fine-tuning the focus at higher magnifications. It is essential to use the coarse adjustment first to avoid crashing the objective lens into the specimen, which can damage both the lens and the specimen.
The coarse adjustment is used to focus in on the specimen. It accomplishes this by moving the stage or the upper part of the microscope.
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