What is BEST reason why Sound and Light differ? A. Light exists whether it is observed or not. Sound only exists when someone hears it. B. Light can travel in a vacuum. Sounds cant travel in a vacuum C. Light is associated with energy, sound is not. D. Light travels in waves, and sounds does not. Answer: B Explanation: One ray of light is typically called a Photon,and its an electromagnetic disturbance.Light doesnt need a medium to travel.The speed of sound through air is about 340 meters per second.Its faster through water or even faster through steel
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