Electromagnetic waves and mechanical waves
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Electromagnetic waves are different from other waves. They can enter in vacuum of outer space. It is propagated by simultaneous periodic variations of electric and magnetic field. They are created by vibrations.
Mechanical wave is different from electromagnetic waves. These waves are not capable to pass its energy to vacuum. They create vibration on matter to transfer their energy to to any material.
Mechanical wave is different from electromagnetic waves. These waves are not capable to pass its energy to vacuum. They create vibration on matter to transfer their energy to to any material.
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