Optics, Refraction: IIT JEE 2012 Physics Solution, Best IIT JEE Coaching

http://www.exponenteducation.com provides new pattern JEE study material and video lectures for JEE main and JEE advanced exams. This video solves a question from IIT JEE 2012 Physics paper from optics topic. It is covers refraction, electro magnetic waves and snells law. It will help you understand the concepts of negative refractive index materials which are also called as meta-materials. They exhibit different optical behavoir without violating any physical laws. You can find more such solutions at: http://crackiitjee.com/video-lectures/category/iit-jee-solutions/