20 Questions
What type of reflection occurs when light is reflected from a smooth surface at a definite angle?
Regular / Specular
Where are the images produced by plane mirrors located?
Behind the mirror
Which type of radiation has the lowest frequency and energy in the visible light spectrum?
Red
Who discovered the Microwave in 1864?
James Clerk Maxwell
Which type of radiation can penetrate the skin a few centimeters and cause damage inside the body?
Beta Radiation
Which type of wave can travel in vacuum without requiring a medium to travel?
Electromagnetic wave
What is the equation to find the frequency of an electromagnetic wave?
$f = \frac{c}{\lambda}$
Which type of radiation is responsible for Vitamin D production through sun exposure?
Ultraviolet ray
What type of electromagnetic wave is used in night-vision goggles and thermal scanners?
Infrared wave
What is the speed at which electromagnetic waves travel in free space?
$3 \times 10^8$ m/s
What is the recommended power range for a soldering iron used in electronics works?
20 to 40 watts
Which tool is used to remove unwanted solder without destroying the electronic component or work piece?
Desoldering Tool
What type of screw head is characterized by a 6-point star-shaped pattern?
Torx
What classification of handtools includes tools used to drive bolts and screws with hexagonal sockets in their heads?
Driving Tools
What is the purpose of a soldering iron stand?
To hold the soldering iron while not in use and prevent accidental burns
What is the purpose of a hot-air soldering station?
To melt solder using hot air, commonly used in cellular phones
Which tool is used to remove the insulation of wires?
Wire Stripper
What is the purpose of a magnifying glass in the context of electronics?
To enlarge the image of electronic components
What is the main function of a portable electric drill in the context of electronics?
To make holes on printed circuit boards (PCBs)
What does a multitester (multimeter) measure in the context of electronics?
Current, resistance, and voltage
This lecture guide covers topics related to the electromagnetic spectrum, including the nature of electronic waves and their characteristics. It also introduces various applications of radiologic technology such as phototherapy, fiber optics, X-RAY, radiologic technology for bone fracture diagnosis, airport security system, industrial radiography, mammography, and angiography.
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