Question

Bhai koi help kardo pleased bro​

Answer 1

Answer: option c

Explanation:

                 the ray got reflected since it was incident at critical angle

    but does not depend on ext med

    hope u get it if not let me know.............................

         

Answer 2

As in the first case ;

Total internal reflection takes place , that means the second medium must be greater than the first one.

so , N1>N2

In second case , N2>N1

but critical angle will overall be the same.

So again the total internal reflection will take place.

OPTION (C).