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Physics 21 Online
OpenStudy (anonymous):

How does a change in medium affect light?

OpenStudy (irishboy123):

it is said to change speed from one medium to another

OpenStudy (anonymous):

Thanks

OpenStudy (anonymous):

The speed of light changes as it passes from one medium to another medium due to the difference in the density of the two media. This is the reason for refraction of light also.

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