When focusing on low power which knob is used to get a clear image?
You should find the 'adjustment knob'.
Two knobs are used to get a clear image on low power. The coarse adjustment knob is used to make drastic changes to the image, and the fine adjustment knob is used to make small adjustments to the image. The reason two knobs are used is because you are supposed to get as clear an image as possible on low power before moving on to the next power, and same with medium power.
There are two knobs. The "coarse focus" knob changes the focal length very quickly, so you use that to get a close to sharp image. Then, you use the "fine focus" knob to perfect the image. Both knobs do the same thing, just at different rates. Resource: http://shs.westport.k12.ct.us/mjvl/biology/microscope/microscope.htm
I'm pretty sure fine adjustment. But coarse adjustment also works. The power doesn't matter, There is ONE difference. Coarse adjustment- A knob that focuses the microscope on the specimen by RAISING and LOWERING the body tube of the scope. Fine adjustment- A knob that adjusts the HEIGHT of the body tube.
After focusing on top of specimen what happens to the depth of focus as you turn the fine adjustment knob backward?
eyepiece- is the part through which the image of specimen is seen. body tube- it is used to hold the objective power. coarse adjustment knob- it is used when focusing through lower power objective. arm- it is attached in the base, and it supports the body tube. revolving nosepiece- to shift or use to revolve the objective power. fine adjustment knob- it is used to fine-tune the image of the specimen. mechanical stage- it is…
Why must the distance from slide to objective lens increase rather than decrease when coarse focusing with the scannin and low power objectives?
According to my neurons that the distance from slide to objective lens should be increase rather than decrease when coarse focusing with the scanner and LPO to obtain a clearer and more focus structure of a certain specimen.. U must ensure that the coarse adjustment knob is at it's extent and then turn on the fine adjustment knob clockwise for the easier visibility of the specimen =)) - VALERIC ACID ...sPCUTE ..=)