Not truly a constant, but rather the maximum speed in a vacuum, the speed of light, which is almost 300,000 kilometers per second, can be manipulated by changing media or with quantum interference.
ght waves are electromagnetic in nature. Therefore they do not require a medium for propagation. ... They are mechanical waves and cannot travel in vacuum.
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Explanation:
Not truly a constant, but rather the maximum speed in a vacuum, the speed of light, which is almost 300,000 kilometers per second, can be manipulated by changing media or with quantum interference.
false
ght waves are electromagnetic in nature. Therefore they do not require a medium for propagation. ... They are mechanical waves and cannot travel in vacuum.