Question: 4 Multiple Choice 1 point The critical angle for a laser beam passing from ethanol into air ( at 2 0 C ) is 4

4
Multiple Choice
1 point
The critical angle for a laser beam passing from ethanol into air (at 20C) is 47.3. This means that all light rays with an angle of incidence in the ethanol that is greater than 47.3 will be
totally reflected.
totally transmitted.
totally absorbed by the sodium chloride.
partially reflected and partially transmitted.
4 Multiple Choice 1 point The critical angle for

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