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The speed of light (3x10^8 m/s) as it is an electromagnetic wave and they all travel at this speed in a vacuum. This number can be used for gases as well as the molecules are so spread out at normal temperatires Same as speed of light "C". Gamma Rays are also form of Electro Magnetic Radiations. All EMR incl Light travel at same speed in same medium.

Which is normally approximated to 3 x 10^8 m/s

Read more: What_speed_do_gamma_rays_travel_at

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13y ago

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