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Questions and Answers
What electromagnetic wave is primarily used for cellular telephone transmission?
What electromagnetic wave is primarily used for cellular telephone transmission?
Which electromagnetic wave has the shortest wavelength?
Which electromagnetic wave has the shortest wavelength?
Which kind of electromagnetic wave is utilized in night vision goggles?
Which kind of electromagnetic wave is utilized in night vision goggles?
What type of electromagnetic wave is used in RADAR technology?
What type of electromagnetic wave is used in RADAR technology?
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Which electromagnetic wave is responsible for causing skin tanning when exposed?
Which electromagnetic wave is responsible for causing skin tanning when exposed?
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Which application is associated with radio waves?
Which application is associated with radio waves?
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Which of the following is an application of infrared waves?
Which of the following is an application of infrared waves?
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Which of the following is NOT considered an application of visible light?
Which of the following is NOT considered an application of visible light?
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What is the correct meaning of the acronym GPS?
What is the correct meaning of the acronym GPS?
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Which device can detect both aircraft and ships?
Which device can detect both aircraft and ships?
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Which electromagnetic wave has the HIGHEST frequency?
Which electromagnetic wave has the HIGHEST frequency?
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Which electromagnetic wave has the LEAST amount of energy?
Which electromagnetic wave has the LEAST amount of energy?
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Which two waves lie at the beginning and end of the electromagnetic spectrum?
Which two waves lie at the beginning and end of the electromagnetic spectrum?
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Which of the following is correctly arranged from longest to shortest wavelength?
Which of the following is correctly arranged from longest to shortest wavelength?
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What is the distance between two successive identical parts of a wave called?
What is the distance between two successive identical parts of a wave called?
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Which of the following refers to the number of waves produced in one second?
Which of the following refers to the number of waves produced in one second?
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What is the value of $9.345 \times 10^{7}$ in standard form?
What is the value of $9.345 \times 10^{7}$ in standard form?
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What is the standard form of $5.64 \times 10^{-6}$?
What is the standard form of $5.64 \times 10^{-6}$?
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Diffuse reflection occurs with which type of surface?
Diffuse reflection occurs with which type of surface?
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What type of image is formed by a plane mirror?
What type of image is formed by a plane mirror?
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Which of the following describes the image formed by a concave mirror?
Which of the following describes the image formed by a concave mirror?
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What kind of lens is known as a diverging lens?
What kind of lens is known as a diverging lens?
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What does the focal length relate to in a mirror?
What does the focal length relate to in a mirror?
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What is the term for a spherical mirror with a reflecting surface that curves inward?
What is the term for a spherical mirror with a reflecting surface that curves inward?
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Study Notes
Electromagnetic Waves
- Electromagnetic waves are created by vibrations between electric and magnetic fields.
- Different electromagnetic waves have varying wavelength ranges.
- X-rays have the shortest wavelength range among listed waves.
- Electromagnetic waves carry varying amounts of energy.
- Ultraviolet rays carry the most energy among given waves.
- Radio waves are used in cellular telephones for signal transmission and reception.
- Night vision goggles use specific EM waves.
- Artificial lighting utilizes visible spectrum waves.
- Radar utilizes microwaves.
- Magnetic Resonance Imaging (MRI) uses electromagnetic waves to create detailed body images.
- Fluorescent materials glow under ultraviolet light.
- Radio waves are commonly used in television and other applications.
- Infrared waves are used in remote controls, thermal imaging, and night vision devices.
- Microwaves are used in artificial lighting and cellular phone communication.
- UV radiation causes tanning.
- Visible light is used in various applications such as bulbs, security markings, and cell phones.
- GPS stands for Global Positioning System.
- Radar can detect aircraft and ships.
- Gamma rays have the highest frequency among listed waves.
- Radio waves have the least energy among listed waves.
- Radio waves and gamma rays have the longest and shortest wavelengths respectively in the EM spectrum.
- Gamma rays are used in treating tumors (cancer).
Wave Properties
- Wave range refers to the possible variation in a wave.
- Wavelength is the distance between successive similar points on a wave.
- A wave's trough is its lowest point.
- A wave's crest is its highest point.
- Amplitude measures the distance from the wave's midpoint to its peak or trough.
- Frequency denotes the number of waves produced per second.
- 367,000,000 in scientific notation is 3.67 x 108.
- 0.0006491 in scientific notation is 6.491 x 10-4.
- 9.345 x 107 in standard form is 93,450,000.
- 5.64 x 10-6 in standard form is 0.00000564.
- Diffused reflection involves light reflecting off rough surfaces in diverse directions.
- A plane mirror creates a virtual image.
- Rough surfaces cause diffuse reflection.
- Concave mirrors have reflecting surfaces that curve inward.
- Convex mirrors have reflecting surfaces that curve outward.
- Focal length is half the distance from the mirror's vertex to its center of curvature.
- Focal length is represented by 'f'.
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Description
This quiz covers the basics of electromagnetic waves, including their creation, types, and different uses. You'll learn about the characteristics of various electromagnetic waves, from radio waves to X-rays, and their applications in technology such as MRI and night vision goggles.
