MPSC PYQScienceLightenglish30) The speed of light in medium "A" is 1.5 × 108 m/s. What is the refractive index of medium ? 1) 1.5 2) 2 3) 1.25 4) 3.013A.1.5B.2C.1.25D.3.013Correct answer: BSource paperScience: LightPractice more questions