No Service 40% 3:55 PM docs.google.com A ray of light is incident on the left vertical face of a glass cube of refractive index nz, as shown in figure below. The plane of incidence is the plane of the page, and the cube is surrounded by liquid of refractive index n. The largest angle of incidence O. for which total internal reflection occurs at the top surface is (Hint, you may use sin ( - ) = cos(0)) m2 91 75% 02:07 Answer by True OR False True False A relation is in the second normal form when its non- primary key attributes depend on each other. The HAVING clause is used to specify a selection condition on a single tuple and not on Groups. A deletion anomaly occurs when you delete a record that may contain attributes that should be deleted