#1
Which type of microscope uses visible light to illuminate and magnify specimens?
Electron microscope
Fluorescence microscope
Confocal microscope
Optical microscope
#2
What is the function of a condenser in a microscope?
To adjust the focus of the specimen
To provide illumination to the specimen
To hold the objective lens
To adjust the magnification
#3
What does DIC stand for in DIC microscopy?
Differential interference contrast
Direct interference contrast
Diffractive interference contrast
Dynamic interference contrast
#4
What is the main advantage of using a dark-field microscope?
Enhanced resolution
Increased contrast
Higher magnification
Reduced depth of field
#5
Which microscopy technique utilizes interference patterns to generate contrast in the image?
Phase-contrast microscopy
Dark-field microscopy
DIC microscopy
Bright-field microscopy
#6
What does the term 'numerical aperture' refer to in microscopy?
The resolution of the microscope
The ability of the microscope to gather light
The magnification power of the microscope
The depth of field of the microscope
#7
Which technique in microscopy is used to obtain 3D images of fluorescently labeled samples with high resolution?
Phase-contrast microscopy
Brightfield microscopy
Fluorescence microscopy
Atomic force microscopy
#8
Which microscopy technique is best suited for observing live biological specimens?
Scanning electron microscopy
Transmission electron microscopy
Confocal microscopy
Phase-contrast microscopy
#9
What does the term 'resolution' refer to in microscopy?
The ability to distinguish between two adjacent points
The depth of focus
The size of the specimen
The brightness of the image
#10
Which microscopy technique utilizes a laser beam to scan the specimen point by point for imaging?
Fluorescence microscopy
Confocal microscopy
Transmission electron microscopy
Scanning electron microscopy
#11
What is the primary advantage of electron microscopy over light microscopy?
Higher resolution
Lower cost
Faster imaging speed
Greater depth of field
#12
In confocal microscopy, what is the role of the pinhole?
To block out-of-focus light
To increase resolution
To enhance contrast
To adjust the depth of field
#13
What is the purpose of staining in microscopy?
To increase magnification
To enhance contrast
To adjust the depth of field
To adjust the resolution
#14
In super-resolution microscopy, what principle is used to achieve resolutions beyond the diffraction limit?
Stimulated emission depletion
Total internal reflection
Phase modulation
Two-photon excitation
#15
Which microscopy technique relies on the detection of emitted light from fluorescently labeled specimens?
Phase-contrast microscopy
Dark-field microscopy
Fluorescence microscopy
Bright-field microscopy