light travels through vacuum justify
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In contrast, light waves can travel through a vacuum, and do not require a medium. In empty space, the wave does not dissipate (grow smaller) no matter how far it travels, because the wave is not interacting with anything else. ... As a wave travels from a source, it propagates outward in all directions .
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light is an interaction of electromagnetic wanes that is oscilations of electric and magnetic waves. this do not need medium, hence light travels in vaccum.
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