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Worksheetsscience 7
Total questions: 15
Worksheet time: 5mins
What is the function of the eyepiece in a microscope?
The eyepiece adjusts the stage height.
The eyepiece focuses light onto the specimen.
The eyepiece magnifies the image for viewing.
The eyepiece controls the light intensity.
Name the part of the microscope that holds the slides in place.
stage
lens
arm
base
What type of microscope uses visible light to magnify specimens?
Confocal microscope
Fluorescence microscope
Electron microscope
Light microscope
What is the main difference between a compound microscope and a stereo microscope?
A compound microscope is designed for outdoor use, while a stereo microscope is meant for laboratory settings.
A compound microscope has a single lens, whereas a stereo microscope has multiple lenses for higher magnification.
A compound microscope is used for viewing living organisms, while a stereo microscope is used for dead specimens.
The main difference is that a compound microscope provides high magnification for small specimens, while a stereo microscope offers a 3D view for larger specimens.
How does the objective lens affect the magnification of a specimen?
The objective lens is solely responsible for the illumination of the specimen.
The objective lens directly influences the magnification by its focal length and numerical aperture.
The objective lens only affects the color of the specimen.
The objective lens has no impact on the overall image quality.
What is the purpose of the stage in a microscope?
To hold and support the specimen for observation.
To adjust the focus of the microscope.
To illuminate the specimen from below.
To magnify the specimen for better visibility.
What type of microscope is used to view very small structures like viruses?
Light microscope
Fluorescence microscope
Confocal microscope
Electron microscope
How do you calculate total magnification in a microscope?
Total magnification = Objective magnification - Eyepiece magnification.
Total magnification = Objective magnification / Eyepiece magnification.
Total magnification = Eyepiece magnification + Objective magnification.
Total magnification = Objective magnification x Eyepiece magnification.
What is the role of the diaphragm in a microscope?
The diaphragm magnifies the specimen in a microscope.
The diaphragm focuses the image in a microscope.
The diaphragm holds the objective lenses in place.
The diaphragm regulates light intensity in a microscope.
What is the first step in preparing a microscope slide?
Prepare the specimen
Adjust the microscope settings
Clean the slide.
Label the slide
What is the purpose of using a cover slip on a microscope slide?
To increase the size of the specimen.
To enhance the color of the specimen.
To protect the specimen and improve imaging quality.
To reduce the amount of light entering the microscope.
How should you properly clean a microscope lens?
Wipe the lens with a paper towel soaked in water.
Use a rough cloth to scrub the lens clean.
Use a soft brush to remove dust, then wipe with a lint-free cloth moistened with lens cleaning solution.
Blow air directly onto the lens to remove dust.
What is the significance of using immersion oil with certain lenses?
Immersion oil increases the brightness of the image.
Immersion oil is used to clean lenses after use.
Immersion oil is necessary for all types of lenses.
Immersion oil enhances resolution by reducing light refraction in high-power lenses.
What safety precautions should be taken when using a microscope?
Use both hands to carry the microscope, keep the work area clean, avoid touching lenses, check electrical components, and wear PPE.
Place the microscope on the floor when not in use
Use one hand to carry the microscope
Clean the lenses with your fingers
What is the difference between a light microscope and an electron microscope?
Electron microscopes are portable, while light microscopes are not.
Light microscopes can magnify objects up to 1000x, while electron microscopes cannot.
Light microscopes can only view living cells, while electron microscopes can view dead cells only.
Light microscopes use light for imaging, while electron microscopes use electron beams for higher resolution.
