Electro Magnetic Spectrum MCQs
Electro Magnetic Spectrum MCQs
These Electro Magnetic Spectrum multiple-choice questions and their answers will help you strengthen your grip on the subject of Electro Magnetic Spectrum. You can prepare for an upcoming exam or job interview with these Electro Magnetic Spectrum MCQs.
So scroll down and start answering.
1: _____ refers to the range of frequencies available in any communications channel.
A. Protocol
B. Broadband
C. Capacity
D. Narrowband
E. Bandwidth
2: What is the electromagnetic spectrum?
A. The range of frequencies of electromagnetic radiation (Correct)
B. The distribution of electrons in an atom
C. The magnetic field generated by an electric current
D. The spectrum of colors visible to the human eye
3: What is the speed of electromagnetic waves in a vacuum?
A. 300,000 km/s (Correct)
B. 100 m/s
C. 1,000,000 km/s
D. 10 m/s
4: Which of the following is the lowest frequency range in the electromagnetic spectrum?
A. Infrared
B. Microwaves
C. Radio waves (Correct)
D. X-rays
5: What is the relationship between the wavelength and frequency of electromagnetic waves?
A. They are inversely proportional (Correct)
B. They are directly proportional
C. There is no relationship between wavelength and frequency
D. The relationship depends on the medium through which the waves propagate
6: Which region of the electromagnetic spectrum includes visible light?
A. Ultraviolet
B. Infrared
C. Radio waves
D. Visible light (Correct)
7: Which type of electromagnetic waves has the highest energy?
A. Gamma rays (Correct)
B. X-rays
C. Ultraviolet
D. Radio waves
8: Which electromagnetic waves have the shortest wavelength?
A. Infrared
B. Microwaves
C. Ultraviolet
D. Gamma rays (Correct)
9: Which type of electromagnetic waves is commonly used in medical imaging?
A. Infrared
B. Ultraviolet
C. X-rays (Correct)
D. Radio waves
10: What is the primary difference between ionizing and non-ionizing radiation?
A. Ionizing radiation has higher frequency and energy than non-ionizing radiation (Correct)
B. Non-ionizing radiation is harmful to living organisms, while ionizing radiation is not
C. Ionizing radiation is used in telecommunications, while non-ionizing radiation is used in medical imaging
D. Non-ionizing radiation can penetrate through solid objects, while ionizing radiation cannot
11: What is the main application of microwaves in everyday life?
A. Cooking food (Correct)
B. Transmitting radio signals
C. Sterilizing medical equipment
D. Detecting underground resources
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Electro Magnetic Spectrum MCQs
