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Could I get some assistance with solving for this please? And Could I get an explanation...

Could I get some assistance with solving for this please? And Could I get an explanation as to why the answer is correct.

Part A:

A refracted ray is always closer to the interface normal than the incident ray.

TRUE or FALSE

Part B:

For a given angle of incident, one condition for total reflection is that the index of refraction be small enough in the substance where the light beam is refracted.

TRUE or FALSE

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