biggest error in modern physics!!if a ray of light passes from rarer to denser medium, the speed of light decreases,and we know that frequency of light is fixed (coz it stands for the total energy E=hv)since velocity decreases, mass also dec., momentum of photon at the interface decreases!!now using de Broglie wavelenght eqn, lambda increases (lambda = h/p , where p=momentum),that means that means the speed of light increases (= lambda*frequency ),now read the second line again and spot the error!!
Hrishant Goswami , 11 Years ago
Grade 10
