Microscopes And Their Uses Flashcards
What is the primary function of the objective lens in a microscope?
To magnify the specimen.
True or False: The eyepiece lens is where you look through to see the magnified image.
True
Fill in the blank: The __________ controls the amount of light that reaches the specimen.
iris diaphragm
What part of the microscope supports the entire structure and houses the light source?
Base
Which part of the microscope is used to adjust the focus?
Coarse and fine adjustment knobs
What is the purpose of the stage in a microscope?
To hold the slide with the specimen.
What type of microscope uses two or more lenses to magnify an image?
Compound microscope
True or False: The condenser lens focuses light onto the specimen.
True
What is the function of the arm in a microscope?
To connect the base and the head and provide support.
Fill in the blank: The __________ is used to switch between different objective lenses.
nosepiece
What is the main purpose of the light source in a microscope?
To illuminate the specimen for better visibility.
Which part of the microscope allows for precise focusing at high magnifications?
Fine adjustment knob
True or False: The stage clips are used to hold the slide in place.
True
What is the role of the ocular lens?
To further magnify the image seen by the eye.
Fill in the blank: The __________ is the part that connects the eyepiece to the body tube.
head
What is the function of the mechanical stage?
To allow precise movement of the slide.
What type of microscope is designed to view living specimens in their natural state?
Phase contrast microscope
True or False: The base of the microscope is typically adjustable.
False
What component is used to change the intensity of light in a microscope?
Rheostat or light intensity control
Fill in the blank: The __________ helps to stabilize the microscope during use.
base
What is the primary purpose of the body tube in a microscope?
To maintain the correct distance between the eyepiece and objective lenses.
Which type of lens is used to create a virtual image for the observer’s eye?
Ocular lens
True or False: The condenser is necessary for brightfield microscopy.
True
What does the term ‘resolution’ refer to in microscopy?
The ability to distinguish two close objects as separate.
