Answered: # the critical angle for fotal inlernal… | bartleby

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f the critical angle for total inlernal reieion,
a medium to wáccuam is 30°, then
velocilų of light in medium is.
(@) 6x i08 m/s
6) 3x (9³ m /s
☺ 2x 10° m s
() 1:5x 108 m/s.
from

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