GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is electric
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It is a wave that is needs a medium to travel
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It is a wave that can travel through a vacuum (like space)
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None of these
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Detailed explanation-1: -Electromagnetic waves are not like sound waves because they do not need molecules to travel. This means that electromagnetic waves can travel through air, solid objects and even space. This is how astronauts on spacewalks use radios to communicate. Radio waves are a type of electromagnetic wave.
Detailed explanation-2: -Answer and Explanation: The waves that are electromagnetic and can travel through a vacuum are any light waves, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. These are the different wavelengths of light.
Detailed explanation-3: -Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.