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Light passes from substance A into substance B as shown. What could these two substances be?
A. A could be diamond (speed of light = 120,000 km/s); B could be air (speed of light = 300,000 km/s).
B. A could be sapphire (speed of light = 170,000 km/s); B could be ruby (speed of light = 170,000 km/s).
C. A could be ruby (speed of light = 170,000 km/s); B could be diamond (speed of light = 120,000 km/s).
D. A could be water (speed of light = 225,000 km/s); B could be diamond (speed of light = 120,000 km/s).

will mark as brainliest if correct Light passes from substance A into substance B as shown What could these two substances be A A could be diamond speed of ligh class=

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Answer:

The answer is A.

Explanation:

The diagram shows the light ray bending away from the normal. Light rays bend away from the normal when their speed increases. This means that in the diagram, the light ray moves from a medium in which light has a lower speed to a medium in light has a higher speed. The only choice where the speed of light increases from A to B is answer A. So that has to be the answer.

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