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What will happen to the velocity of light ray when it passes from glass to air?

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The velocity of light will increase as it passes through a denser (glass) area to a less denser area (air)
User Janispritzkau
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Answer:

So, when light passes from air to glass, its speed decreases. Q.

Step-by-step explanation:

ray from the ghostbusters

User Njuguna Mureithi
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