Question : ________ are used for communication in artificial satellites.
Option 1: Infrared waves
Option 2: Radio waves
Option 3: Ultraviolet (UV) rays
Option 4: Amplitude Modulation (AM) waves
Correct Answer: Radio waves
Solution : The correct option is Radio waves.
Electromagnetic radiation with particularly long wavelengths is radio waves. Radio waves are used by artificial satellites in orbit to send and receive signals to and from Earth. This makes possible numerous forms of communication, including TV broadcasts, data transfer through the internet, GPS signals, and more.
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Question : ______ waves include visible light waves, X-rays, gamma rays, radio waves, microwaves, ultraviolet and infrared waves.
Option 1: Electromagnetic
Option 2: Mechanical
Option 3: Magnetic
Option 4: Electric
Question : ______ are also known as heat waves.
Option 2: Gamma rays
Option 3: Light waves
Option 4: X-rays
Question : In the remote control of television, electromagnetic waves are
Option 1: ultraviolet
Option 2: microwave
Option 3: radio wave
Option 4: infrared
Question : Which of the following waves has the highest frequency?
Option 1: Radio
Option 2: Infrared
Option 3: Microwaves
Option 4: Gamma-rays
Question : Name the high frequency radiation produced in nuclear reactions and also emitted by radioactive nuclei that is used in medicine to destroy cancer cells.
Option 1: Ultraviolet waves
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