Write two properties common to all the electromagnetic radiations.
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1) Electromagnetic waves are propagated by oscillating electric and magnetic fields oscillating at right angles to each other.
2) Electromagnetic waves are not deflected by electric or magnetic field.
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Hey! Your answer is here:--
1. Electromagnetic radiation can travel through empty space. Most other types of waves must travel through some sort of substance. For example, sound waves need either a gas, solid, or liquid to pass through in order to be heard.
2. The speed of light is always a constant i.e. 3* 10^8 m/s
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