Question

1. What is the total magnification of the following objective lenses with the eyepiece?
   1. Medium: ________________
   2. Low: ___________________
   3. High: ___________________

2. Which adjustment knob should you use on the high power? _________________________

3. How do you prevent the slide from falling off the stage? ____________________________

__________________________________________________________________________

4. Which adjustment knob is used for bringing the specimen into focus? _________________

5.Which adjustment knob is used for sharpening the image of the specimen after it is focused?

Answer 1

To determine the microscope magnification at low, medium, and high power. The magnification is how many times, the object has been enlarged. To calculate the magnification, you will need to multiply the magnification of the ocular lens with the magnification of the objective lens. See below for the equation.

magnification=Multiplying magnification ocular lens with magnification of objective length.
Example: If the magnification of the ocular lens is x10 and the magnification of the objective lenses are x4, x10, and x40, what are the magnifications at low, medium and high power?

magnification at low power =10x4=40 times

magnification at medium power=10x10=100 times

magnification at high power =10x40=400 times

Fine Adjustment Knob - This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses.

By putting pair of stage clips on it we can prevent the slide falling off the stage.

Coarse Adjustment Knob- The coarse adjustment knob located on the arm of the microscope moves the stage up and down to bring the specimen into focus.

small, round knob on the side of the microscope used to sharpen or "fine-tune" the focus of your specimen after using the coarse adjustment knob. The bottom support of the microscope.