#1
Which type of microscope uses visible light to illuminate and magnify specimens?
Optical microscope
ExplanationUses visible light for illumination and magnification.
#2
What is the function of a condenser in a microscope?
To provide illumination to the specimen
ExplanationProvides illumination to specimen.
#3
What does DIC stand for in DIC microscopy?
Differential interference contrast
ExplanationRefers to differential interference contrast.
#4
What is the main advantage of using a dark-field microscope?
Increased contrast
ExplanationIncreases image contrast.
#5
Which microscopy technique utilizes interference patterns to generate contrast in the image?
Phase-contrast microscopy
ExplanationUtilizes interference patterns for contrast.
#6
What does the term 'numerical aperture' refer to in microscopy?
The ability of the microscope to gather light
ExplanationRefers to light-gathering ability of microscope.
#7
Which technique in microscopy is used to obtain 3D images of fluorescently labeled samples with high resolution?
Fluorescence microscopy
ExplanationProvides 3D images of fluorescently labeled samples.
#8
Which microscopy technique is best suited for observing live biological specimens?
Phase-contrast microscopy
ExplanationWell-suited for live biological specimen observation.
#9
What does the term 'resolution' refer to in microscopy?
The ability to distinguish between two adjacent points
ExplanationRefers to ability to distinguish adjacent points.
#10
Which microscopy technique utilizes a laser beam to scan the specimen point by point for imaging?
Confocal microscopy
ExplanationUtilizes laser beam for scanning.
#11
What is the primary advantage of electron microscopy over light microscopy?
Higher resolution
ExplanationOffers higher image resolution.
#12
In confocal microscopy, what is the role of the pinhole?
To block out-of-focus light
ExplanationBlocks out-of-focus light.
#13
What is the purpose of staining in microscopy?
To enhance contrast
ExplanationEnhances image contrast.
#14
In super-resolution microscopy, what principle is used to achieve resolutions beyond the diffraction limit?
Stimulated emission depletion
ExplanationAchieves resolutions beyond diffraction limit.
#15
Which microscopy technique relies on the detection of emitted light from fluorescently labeled specimens?
Fluorescence microscopy
ExplanationRelies on detection of emitted light.