Question

all electromagnetic wave have the same (a) frequency (b) amplitude (c) wavelength in vacuum (d) speed in vacuum

Answer 1

Answer:

Explanation:

D

Answer 2

The correct answer is option (d) speed in vacuum.

• Electric waves or EM waves are caused by vibration between the electric field and the magnetic field. In other words, EM waves are made up of magnetic and electric fields.
• Electrical waves form when an electric field meets a magnetic field. They are therefore known as ‘electromagnetic’ waves. The electric field and the electromagnetic field are perpendiculars (at right angles) to each other. They also look at the direction of the EM wave.

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