Update sound.md
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sound.md
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sound.md
@ -9,14 +9,14 @@ The movement of the disturbance through a medium due to repeated periodic motion
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i. Mechanical Wave
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i. Mechanical Wave
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MECHANICAL WAVE - *Periodic* disturbance which *requires material medium* (i.e. solid, liquid or gas) *for its propagation*.
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Mechanical Wave - *Periodic* disturbance which *requires material medium* (i.e. solid, liquid or gas) *for its propagation*.
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These waves are characterized by the motion of the particles of a medium.
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These waves are characterized by the motion of the particles of a medium.
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These waves have well defined characteristics.
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These waves have well defined characteristics.
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ii. Electromagnetic Wave
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ii. Electromagnetic Wave
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Electromagnetic waves are a type of wave that can travel through the vacuum of space
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Type of wave that can travel through the vacuum of space
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i.e they *don't require a material medium for propagation*.
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i.e they *don't require a material medium for propagation*.
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They are created by the *vibration of electric charges* and consist of *oscillating electric and magnetic fields* that are *perpendicular* to each other and to the direction of the wave's travel.
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They are created by the *vibration of electric charges* and consist of *oscillating electric and magnetic fields* that are *perpendicular* to each other and to the direction of the wave's travel.
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