During the production of X-ray, when electron travel from cathode to anode, electron velocity raised from
Zero to the speed of the light
Zero to half of the speed of the light
Zero to double of the speed of light
Zero to the speed of sound
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Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism.
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