For total internal reflection to take place a ray of light must :
A. travel from denser to rarer medium
B. travel from rarer to denser medium
C. medium does not play any role
D. none of these
Answer:A
For total internal reflection to take place a ray of light must :
A. travel from denser to rarer medium B. travel from rarer to denser medium C. medium does not play any role D. none of these