Radio Quiz: questions and answers
Free online printable quiz with multiple-choice questions (MCQ) without registration.
Radio is one of the types of social media. It is clearly unknown who was the first to invent the radio technologyю What do you know about it?
Radio quiz contains interesting questions with multiple choice answers about the topic.
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1. What is a transmitter?
An electronic device which produces radio waves with an antenna
2. What is the name of the electrical device which receives radio waves and converts the information carried by them to a usable form?
A radio receiver
3. When did James Clerk Maxwell show mathematically that electromagnetic waves could propagate through free space?
1864
4. What is the name given to the phenomena that occur in an electric circuit at a particular resonant frequency when the impedances or admittances of circuit elements cancel each other?
Electrical resonance
5. What is refraction?
The change in direction of a wave passing from one medium to another or from a gradual change in the medium
6. RADAR is the acronym for:
Radio detection and ranging
7. Who was able to demonstrate the existence of electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism?
Heinrich Hertz
8. What is the name of the oven that uses intense radio waves to heat food?
Microwave oven
9. Who operates the Global Positioning System (GPS)?
United States Air Force
10. What is the photon energy of radio waves?
12.4 feV - 1.24 meV