ajustic2032 ajustic2032 16-04-2021 Physics contestada A ray in flint glass (n = 1.61) reaches a boundary with glycerol (n = 1.47) at 68.9 deg. Does it reflect internally or refract into the air? Enter o for reflect, and 1 for refract. (Water n = 1.33, Air n = 1.00)