A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90°with each other. The angles of reflection and refraction are r and r'. The critical angle between them is (a) sin^-1(tanr) (b) sin^-1(tani) (c) sin^-1(tanr') (d) tan^-1(tani) (The figure has an incident ray , a reflected ray , a normal and a refracted ray all lying at the point of incidence and an angle of 90 degree btw reflected and refracted ray) *(Sir/madam please send a detailed answer along with the explanation of the QUESTION)

A ray of light from a denser medium strikes a rare medium at angle of

1.	A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90°with each other. The angles of reflection and refraction are r and r'. The critical angle between them is (a) sin^-1(tanr) (b) sin^-1(tani) (c) sin^-1(tanr') (d) tan^-1(tani) (The figure has an incident ray , a reflected ray , a normal and a refracted ray all lying at the point of incidence and an angle of 90 degree btw reflected and refracted ray) *(Sir/madam please send a detailed answer along with the explanation of the QUESTION)
Answer» A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90°with each other. The angles of reflection and refraction are r and r'. The critical angle between them is (a) sin^-1(tanr) (b) sin^-1(tani) (c) sin^-1(tanr') (d) tan^-1(tani) (The figure has an incident ray , a reflected ray , a normal and a refracted ray all lying at the point of incidence and an angle of 90 degree btw reflected and refracted ray) *(Sir/madam please send a detailed answer along with the explanation of the QUESTION)