Total internal reflection of a ray of light is possible when the ( i_c= critical angle,  angle of incidence)

• A

   Ray goes from denser medium to rarer medium and i<i_c  

• B

  Ray goes from denser medium to rarer medium and $\mathrm{i}>{\mathrm{i}}_{\mathrm{c}}$

• C

  Ray goes from rarer medium to denser medium and $\mathrm{i}>{\mathrm{i}}_{\mathrm{c}}$

• D

  Ray goes from rarer medium to denser medium and $\mathrm{i}<{\mathrm{i}}_{\mathrm{c}}$