Microscope Operation and Safety Guidelines

This video tutorial explains how to use a light microscope, covering its parts, setup, focusing techniques, magnification levels, and safety tips. It emphasizes the importance of understanding the microscope's components, such as eyepieces, body tube, and objective lenses, and provides guidance on carrying, setting up, and focusing the microscope. The tutorial also highlights the significance of using the correct magnification and handling the microscope safely to prevent damage and eye strain.

What is the function of the body tube in a light microscope?

• To adjust the light intensity

• To hold the microscope slide

• To bend light and allow sample viewing

• To magnify the sample

What is the purpose of stage clips on a microscope?

• To adjust the light source

• To change the objective lens

• To focus the sample

• To hold the microscope slide in place

How should you carry a light microscope?

• With both hands, one on the arm and one under the base

• With both hands on the objective lenses

• With one hand on the stage

• With one hand on the eyepiece

What is a common mistake when starting to use a light microscope?

• Using the wrong eyepiece

• Not turning on the light

• Forgetting to adjust the stage

• Carrying it with one hand

What is the first step in focusing a light microscope?

• Use the coarse focus dial with the lowest magnification lens

• Use the fine focus dial

• Adjust the diaphragm

• Set the microscope to the highest magnification

Why is it important to focus with each objective lens before moving to the next?

• To avoid breaking the slide or lens

• To save time

• To increase light intensity

• To prevent eye strain

What color is the objective lens with the lowest magnification power?

• Yellow

• Red

• Blue

• Green

How do you calculate the total magnification of a sample?

• Add the eyepiece and objective lens magnifications

• Subtract the objective lens magnification from the eyepiece magnification

• Multiply the eyepiece and objective lens magnifications

• Divide the eyepiece magnification by the objective lens magnification

What should you do if the microscope light gets too hot?

• Cover the light source

• Increase the light intensity

• Turn off the light and let it cool down

• Move the microscope to a cooler area

Why is it important to use a dust cover on a microscope?

• To keep the microscope warm

• To protect it from dust and damage

• To increase its magnification power

• To make it look more professional