What is the speed of x rays?

X rays are light waves (electromagnetic waves). So they travel at 299792458 metres per second (approximately 3.00×10^8 m/s) in vacuum and reduce according to the refractive index of the medium in other media. As the question doesn't ask for it, let's leave out the details about the production of X rays. read more

X-ray is an electromagnetic wave.And every electromagnetic waves move with a speed of light. The speed of light in vacuum is 300000000 m/s. read more

X-rays are a form of electromagnetic radiation just like visible light. They travel at the same speed (299,792 km/s in a vacuum) as visible light. The only difference is that x-rays have a much higher frequency (~10^18 Hz) and hence a much shorter wavelength (~1 nm) than visible light. read more

Best Answer: X-ray is part of the Electro-magnetic wave spectrum. All waves of this spectrum travel with the same speed of 3 x10^8 or 300,000,000 m/s, including X-rays. read more