#1
Which part of the microscope is used for adjusting the focus?
Fine and coarse adjustment knobs
ExplanationAdjustment knobs control focus.
#2
What is the function of the condenser in a microscope?
To adjust the intensity of light
ExplanationCondenser controls light intensity.
#3
What is the function of the iris diaphragm in a microscope?
To control the intensity of light
ExplanationIris diaphragm regulates light intensity.
#4
What is the function of the stage clips on a microscope?
To secure the slide in place
ExplanationStage clips secure the microscope slide.
#5
What is the purpose of a coverslip in microscopy?
To support the slide
ExplanationCoverslip supports the microscope slide.
#6
What is the total magnification when using a 10x eyepiece and a 40x objective lens?
400x
ExplanationMultiply eyepiece and objective magnifications.
#7
Which type of microscope is commonly used for viewing live specimens?
Phase-contrast microscope
ExplanationPhase-contrast is ideal for live specimen observation.
#8
Which type of microscope is used for viewing objects in three dimensions?
Confocal microscope
ExplanationConfocal microscopy provides 3D views.
#9
What is the purpose of immersion oil in microscopy?
To improve resolution
ExplanationImmersion oil enhances resolution.
#10
What does the term 'working distance' refer to in microscopy?
The distance between the objective lens and the specimen
ExplanationWorking distance is objective-to-specimen distance.
#11
What does the term 'numerical aperture' (NA) refer to in microscopy?
The ability of a lens to gather light
ExplanationNA measures light-gathering capability.
#12
Which microscope technique is best for observing the surface of a specimen with high resolution?
Scanning electron microscopy
ExplanationSEM provides high-res surface images.
#13
Which microscope technique utilizes fluorescence to visualize specific structures within a specimen?
Fluorescence microscopy
ExplanationFluorescence microscopy uses fluorescence for visualization.
#14
Which microscope technique is suitable for observing internal structures of thick specimens without slicing them?
Confocal microscopy
ExplanationConfocal microscopy for thick specimen internals.
#15
Which microscope technique is used to observe the surface of non-conductive specimens?
Atomic force microscopy
ExplanationAtomic force microscopy for non-conductive surfaces.