Which one of these facts about light are true?
a) light rays cannot stop until a mass is able to receive the light ray.

b) light has a indefinite source.

The fact about light that is true is that light rays cannot stop until a mass is able to receive the light ray. The answer is letter B. Light travels fastest through outer space, it travels somewhat slower though air, and of these three, it travels the slowest through glass.

i'm just gonna leave this comment here, so i can get a challange done-

explanation:

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