Total internal reflection takes place when the light ray travels from …………….. .
A. rarer to denser medium
B. rarer to rarer medium
C. denser to rarer medium
D. denser to denser medium
Answer:C
Total internal reflection takes place when the light ray travels from …………….. .
A. rarer to denser medium B. rarer to rarer medium C. denser to rarer medium D. denser to denser medium