What is true for ALL of the examples of electromagnetic waves? A) They all move at the same speed in a vacuum. B) They all have the same wavelength. C) They all have the same frequency. D) They all have the same energy.

The reason for qualifying 'in vacuum' is because EM waves of different frequencies often propagate at different speeds through material. 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.

onyebuchinnaji onyebuchinnaji · Answer 2 · 2021-11-18T10:23:59+01:00

The correct statement in the given options is that electromagnetic waves move at the same speed in a vacuum.

Electromagnetic waves are types of wave that do not require material medium for their propagation unlike the mechanical waves.

These electromagnetic waves travel in vacuum with speed of light at approximately a value of [tex]3\times 10^8 \ m/s[/tex].

Examples of electromagnetic waves include;

ultraviolet rays
x-rays
gamma rays
radio waves, etc

Thus, we can conclude that the correct statement in the given options is that electromagnetic waves move at the same speed in a vacuum.

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