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Light is electromagnetic radiation. The speed of light in a vacuum is the speed for all electromagnetic radiation, as long as it is measured in vacuo.

When e-m radiation travels through something other than a vacuum, it travels more slowly. How much slower sometimes varies according to the wavelength of the radiation.

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14y ago
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14y ago

The answer is wavelength times frequency.

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14y ago

The speed of light = 299,792,458 meters per second.

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13y ago

299,792,458 meters (186,282 miles) per second.

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13y ago

299,792,458 meters per second

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13y ago

the medium it travels through.

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Q: For electromagnetic radiation the speed of light equals?
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Related questions

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.


What does radiation have to do with the speed of light?

All forms of electromagnetic radiation move from place to place at the speed of light.


Does radio waves always travel the speed of light?

Radio waves, like light, is a form of electromagnetic radiation. Other types of electromagnetic radiation include X-rays, infrared radiation, and gamma rays. All electromagnetic radiation travel at the speed of light.


Heat waves traveling at the speed of light are called?

Heat waves traveling at the speed of light are called RADIATION! :)


How fast are electromagnetic radiation?

Electromagnetic radiation travels at the speed of light, or approximately 300,000,000 meters per second.


How does the speed of visible light compare with the speed of gamma ray?

Gamma radiation is the fastest, as it is light. speed of gamma radiation = c (light speed) speed of beta radiation < c ( below light speed ) speed of alpha radiation < c/10 ( far below light speed )


What do all types electromagnetic radiation have in common?

They travel at the speed of light (c = 3*108 m/s)


How does a ship use light speed?

Nothing except electromagnetic radiation uses light speed.


What do not travel at the speed of light?

Nothing except electromagnetic radiation do.


How can you calculate speed of radar?

Radar emissions are electromagnetic radiation that travel at the speed of light.


Is speed a constant for all types of electromagnetic radiation in space?

Yes it is. It's the speed we call the "speed of light", although it applies equally to electromagnetic radiation at all frequencies/wavelengths.


Which element move at the speed of light?

No elements do. Only electromagnetic radiation does.