A ray of light traveling in air enters benzene contained in a rectangular tank whose walls are made of ice. The bottom of the tank is a mirror. The original ray makes an angle of 70.0o with the normal (vertical) upon entering the benzene at the top of the tank. The ray travels through the benzene, reflects off the mirror at the bottom of the tank, and strikes the vertical side of the tank. What angle does the ray make with the horizontal (normal) when it reaches the side of the tank? At the point where it hits the side, does any of the light refract into the ice?