2015 수능특강 - 해설강의 22강 3번-해설지만으로는 이해하기 힘든 지문

케빈영어닷컴에 오시면, 1강~2강, 11강~13강 완전무료 !

수능특강 시즌 1 (3강~10강) 35,000원 회원가:30,000원

수능특강 시즌 2 (14강~30강/ 16강(도표)제외) 35,000원 회원가:30,000원

케빈영어닷컴 바로가기 : http://www.kevin05.com

 

 

When an underwater object is seen from outside the water, its appearance becomes distorted. This is because refraction changes the direction of the light rays that come from the object. When these rays enter the eyes of an observer, nerves in the eyes send signals to the observer's brain. The brain then constructs a picture based on where the rays appear to have come from. It does this without accounting for the effects of refraction, so the object's appearance is distorted. When one looks at a straw in a glass of water, light rays from the part of the straw that is underwater refract at the surfaces between the water and the glass, and between the glass and the air. The rays appear to come from closer to the surface than they are, and the straw looks bent. If the straw were viewed from underwater, the part above water would be distorted.