The refractive index of medium A is 1.54 and that of medium B is 2.12. Which statement is correct about this information?
A. a ray of light passing from medium A to B can undergo total internal reflection.
B. a ray of light passing from medium A to B will bend away from the normal.
C. a ray of light passing from medium A to B will bend toward the normal.
D. a ray of light passing from medium A to B can make a critical angel.
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