Total internal reflection. i. is a phenomenon of refraction of light. ii. occurs when light rays travel into a denser medium. iii. occurs when the critical angle is just exceeded. iv. is a phenomenon of reflection of light. Which of the statements above are correct?
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A.
i and ii only -
B.
i and iii only -
C.
i, ii and iii only -
D.
i, iii and iv only