Which of the following technologies uses the principles of optics?
a) Microwave ovens
b) Smartphones
c) Nuclear reactors
d) Radio waves
Optical fibers are widely used for:
a) Transmitting electric signals
b) Power generation
c) Data communication
d) Magnetic field detection
Which of the following devices relies on optics to magnify objects?
a) Thermometer
b) Microscope
c) Accelerometer
d) Barometer
In which technology is the phenomenon of total internal reflection primarily used?
a) Laser printers
b) Fiber-optic communication
c) X-ray imaging
d) Sonar detection
In the context of optical lenses, what is the main function of a concave lens?
a) To converge light
b) To magnify objects
c) To diverge light
d) To reflect light
Which optical technology is used in barcode scanners?
a) Reflection
b) Refraction
c) Diffraction
d) Absorption
Laser technology is commonly used in which of the following applications?
a) Energy storage
b) Entertainment systems
c) Precision cutting and surgery
d) Cooking
Which optical device is commonly used in projectors to focus light?
a) Convex lens
b) Concave lens
c) Diffraction grating
d) Prism
Which technology utilizes optics for image enhancement in night vision systems?
a) Optical coherence tomography
b) Laser light scattering
c) Infrared optics
d) UV light detection
Which optical phenomenon is used in the formation of a rainbow?
a) Reflection
b) Refraction
c) Diffraction
d) Polarization
In photography, what optical element controls the exposure of light?
a) Shutter speed
b) Aperture
c) Lens focal length
d) ISO setting
What is the primary function of a prism in optics?
a) To focus light
b) To disperse light
c) To reflect light
d) To absorb light
Which of the following optical devices is used in optical microscopes for focusing light?
a) Filter
b) Diaphragm
c) Condenser lens
d) Objective lens
What principle is applied in the operation of optical sensors?
a) Diffraction
b) Polarization
c) Refraction
d) Absorption and reflection
What optical component is used in telescopes to collect light from distant objects?
a) Eyepiece
b) Objective lens
c) Prism
d) Diaphragm
What optical phenomenon is used in holography to record 3D images?
a) Diffraction
b) Refraction
c) Interference
d) Polarization
Which application of optics is used in CD and DVD players to read data?
a) Light reflection
b) Laser light and diffraction
c) Refraction
d) Polarization
What is the role of a lens in a camera?
a) To focus and capture light
b) To reflect light
c) To store light
d) To absorb light
What technology uses optics for detecting objects underwater?
a) Sonar
b) RADAR
c) LIDAR
d) SONAR
In optical computing, what is the purpose of optical waveguides?
a) To reflect light
b) To store light
c) To guide light signals through circuits
d) To polarize light
What optical device is used to manipulate the phase and direction of light in communication systems?
a) Lens
b) Mirror
c) Beam splitter
d) Modulator
Which optical principle is used in the functioning of a laser?
a) Total internal reflection
b) Diffraction
c) Spontaneous emission
d) Stimulated emission of radiation
Which type of optical device is typically used in eye glasses to correct vision?
a) Convex lens
b) Concave lens
c) Cylindrical lens
d) Both convex and concave lenses
What type of optical technology is commonly used in optical fingerprint scanners?
a) Infrared light
b) X-ray imaging
c) Visible light reflection
d) Ultraviolet radiation
Which technology uses optics to produce images with high resolution from living tissues?
a) MRI
b) X-ray
c) Optical coherence tomography
d) Ultrasound
In a laser printer, which optical process is responsible for creating an image on the drum?
a) Refraction
b) Reflection
c) Diffraction
d) Polarization
Which optical principle is commonly used in optical telescopes to magnify distant objects?
a) Polarization
b) Refraction
c) Diffraction
d) Reflection
In optical communications, what is used to modulate a light signal?
a) Frequency
b) Wavelength
c) Amplitude
d) All of the above
What type of optics is used in laser surgery for precision cutting?
a) Lenses and mirrors
b) Prism and diffraction
c) Polarization filters
d) Fluorescent light sources
Which of the following uses optics to detect the physical properties of materials?
a) X-ray diffraction
b) Spectroscopy
c) Laser cutting
d) Magnetic resonance imaging
What is the main optical principle involved in the functioning of a microscope?
a) Refraction
b) Reflection
c) Diffraction
d) Polarization
In fiber optics, the light signals travel through the fiber due to:
a) Refraction
b) Total internal reflection
c) Diffraction
d) Dispersion
Which of the following uses optics to detect remote objects in the atmosphere?
a) Radar
b) Lidar
c) Sonar
d) Ultraviolet detector
Which optical device is used to adjust the light intensity in microscopes?
a) Condenser lens
b) Objective lens
c) Diaphragm
d) Eyepiece
