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Which statement is correct? Light can travel in a vacuum, and it travels faster if the light source is moving. Light can travel in a vacuum, and its speed is constant if the source is moving or stationery. Light can travel in a vacuum, and will travel faster if the light source is moving. Light can travel in a vacuum, and it travels more slowly if the light source is stationery.
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speed of light is unaffected by the speed of the source
light always travels at the same speed
in a vacuum, travels at the same speed even if the light source is moving.
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