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Index of refraction of air is very low, like 1.0003. The index of refraction is a function of wavelength. X-rays and gamma rays pass through air at c. c is 299,792,458 m/s, so speed of visible light in air is about 299,700,000 m/s.
Wiki User
∙ 13y ago
Wiki User
∙ 7y agoIn vacuum they travel at 299,792 kilometres per second.
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Can macnetic waves travel at the speed of ligth?
Light is an electromagnetic wave. Electromagnetic waves travel at the speed of light. Electric and magnetic waves don't travel on their own - the wave travels as a combined electric and magnetic wave.
What is the speed of ultrasonic waves in vacuum is equal to what is the speed of audible sound in air?
No, ultrasonic wave do not travel at all in a vacuum.
Why do electromagnetic waves travel at the speed of light?
Radio-waves, like light, are electromagnetic waves and hence travel at the speed of light.
Do ultraviolet waves travel at the speed of light in a vacuum?
Ultraviolet and visible light waves all travel at the same speed whenever they're all traveling through the same material.
IS electromagnetic waves travel faster than speed of light?
Electromagnetic waves are, by definition, light. So they travel at the exact same speed as light.Also, a "Do" would be appropriate here, instead of an "IS".
How fast do electromagentic waves move?
At the speed of light - about 300,000 km/sec (3 x 108 m/sec)
What causes electromagentic waves?
Oscillating electric charges.
What speed to em waves travel?
speed of light
Do radio waves travel at the speed of sound at the speed of light or at some speed in between?
'Radio' waves are physically and electrically identical to light waves except for their frequency (wavelength), and they travel at the same speed as light does.
What speed do electromagnetic waves travel?
the speed of lightspeed of light
What are waves that travel through space at the speed of light called?
All electromagnetic waves travel through space at the "speed of light". Light is one form of electromagnetic waves.
Why do waves of different wavelengths travel at the same speed?
All light travel at the same speed.
Can macnetic waves travel at the speed of ligth?
Light is an electromagnetic wave. Electromagnetic waves travel at the speed of light. Electric and magnetic waves don't travel on their own - the wave travels as a combined electric and magnetic wave.
Do electromagnetic waves travel at the same speed as a vacuum?
They travel faster
What is it that all electromagnetic waves do the same?
All electromagnetic waves travel at the same speed in a vacuum -- the speed of light.
Which waves travel at the Speed of light?
All electromagnetic waves, including radio.
What do you know about the speed of the 2 waves in the vacuum?
All electromagnetic waves, light, x-rays, etc travel at the same speed. Sound waves require a medium to travel thru, so they cannot travel thru a vacuum.
