# Do You Know About Electromagnetic Spectrum? Trivia Quiz

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What do you know about the electromagnetic spectrum? Do you think you can pass this quiz? Concerning this quiz, you should understand the longest and shortest wavelength of the spectrum, what shows up as a white image, what is utilized in the treatment of jaundice, what is visible light, the police detection of speed, and what is produced by dying stars. This quiz will show your electromagnetic spectrum wisdom.

Questions and Answers
• 1.

### The longest wavelength of the spectrum.

• A.

Radio Waves

• B.

UV Waves

• C.

Visible Light

Correct Answer
A. Radio Waves
Explanation
Radio waves have the longest wavelength in the electromagnetic spectrum. They have wavelengths ranging from about one millimeter to 100 kilometers, making them longer than UV waves and visible light. Radio waves are used for various purposes, including communication, broadcasting, and radar systems. They have lower frequencies and carry less energy compared to other types of waves in the spectrum.

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• 2.

### The shortest wavelength of the spectrum.

• A.

Microwaves

• B.

Infrared Waves

• C.

Gamma Rays

Correct Answer
C. Gamma Rays
Explanation
Gamma rays have the shortest wavelength in the electromagnetic spectrum. They have wavelengths shorter than X-rays and carry the highest amount of energy. These rays are produced by radioactive decay, nuclear explosions, and high-energy particle interactions. Gamma rays are used in various fields such as medicine, industry, and research. They can penetrate through most materials and are used for sterilization, cancer treatment, and imaging techniques like gamma-ray spectroscopy. Due to their high energy, gamma rays can be harmful to living organisms and require proper shielding for protection.

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• 3.

### Shows as a white image.

• A.

UV Waves

• B.

X Rays

• C.

Radio Waves

Correct Answer
B. X Rays
Explanation
X-rays are a form of electromagnetic radiation with high energy and short wavelengths. They have the ability to penetrate matter, including the human body, which makes them useful in medical imaging. X-rays are often used to visualize bones and internal organs. The statement "Shows as a white image" indicates that X-rays appear as a white image on a radiographic film, as they are absorbed by denser tissues and bones, resulting in a lighter shade.

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• 4.

### Used to treat Jaundice

• A.

UV Rays

• B.

X Rays

• C.

Gamma Rays

Correct Answer
A. UV Rays
Explanation
UV rays are used to treat jaundice because they have the ability to break down bilirubin, a substance that causes the yellowing of the skin and eyes in jaundice patients. When UV rays are exposed to the skin, they stimulate the production of vitamin D, which helps in the breakdown of bilirubin. This treatment is known as phototherapy and is commonly used in neonatal units for newborns with jaundice. UV rays have a shorter wavelength than X-rays and gamma rays, making them less penetrating and more suitable for this specific medical treatment.

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• 5.

### Orange, Yellow, Blue, Green, Indigo

• A.

Microwaves

• B.

Radio Waves

• C.

Visible Light

Correct Answer
C. Visible Light
Explanation
The given list consists of colors of the rainbow in a specific order: orange, yellow, blue, green, indigo. These colors are associated with visible light. Microwaves and radio waves are types of electromagnetic waves that are not visible to the human eye. Therefore, the correct answer is visible light.

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• 6.

### Police detection of Speed

• A.

Microwaves

• B.

Gamma Rays

• C.

Infrared Waves

Correct Answer
A. Microwaves
Explanation
Microwaves are used by police for speed detection. Police officers use radar guns that emit microwave signals to measure the speed of moving vehicles. These radar guns work on the principle of Doppler effect, where the frequency of the microwave signal changes when it reflects off a moving object. By measuring this frequency change, police can determine the speed of the vehicle. Microwaves are preferred for speed detection as they have a longer wavelength compared to other electromagnetic waves, allowing them to penetrate through various weather conditions and provide accurate speed measurements.

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• 7.

### Heat Lamps

• A.

Radio Waves

• B.

Microwaves

• C.

Infrared Waves

Correct Answer
C. Infrared Waves
Explanation
Infrared waves are the correct answer because heat lamps emit infrared waves. Infrared waves have longer wavelengths than visible light, and they are commonly used for heating applications. Heat lamps use infrared waves to generate heat, which is why they are often used in outdoor spaces or for keeping food warm. Infrared waves are also used in various other applications, such as remote controls and thermal imaging.

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• 8.

### Produced by dying stars.

• A.

Visible Light

• B.

Infrared Waves

• C.

Gamma Rays

Correct Answer
C. Gamma Rays
Explanation
Gamma rays are produced by dying stars. This high-energy electromagnetic radiation is emitted during certain nuclear reactions, such as supernova explosions or when a star collapses into a black hole. These dying stars release an immense amount of energy in the form of gamma rays, which are the most energetic type of electromagnetic radiation. Therefore, gamma rays are the correct answer in this context.

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• 9.

### Lead absorbs this particular wavelength.

• A.

Gamma Rays

• B.

X Rays

• C.

UV Rays

Correct Answer
B. X Rays
Explanation
X-rays are a form of electromagnetic radiation that have a shorter wavelength and higher energy than UV rays. Lead is known to have a high atomic number and density, which makes it effective at absorbing X-rays. Therefore, lead is commonly used as a shielding material in X-ray machines and protective gear for workers in X-ray facilities.

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• 10.

### Rainbow

• A.

Visible Light

• B.

UV Light

• C.

Microwaves

Correct Answer
A. Visible Light
Explanation
Visible light refers to the range of electromagnetic radiation that is visible to the human eye. It includes the colors of the rainbow, which are formed when light is refracted and dispersed by water droplets in the atmosphere. UV light and microwaves are also forms of electromagnetic radiation, but they are not part of the visible light spectrum. Therefore, the correct answer is visible light.

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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Jan 06, 2010
Quiz Created by
Wifypoof

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