Please answer this q. Q.10. The refractive index of water is 1.33 and the speed of light in air is 3 × 10 8 m s - 1 . Calculate the speed of light in water. Share with your friends Share 0 Decoder_2 answered this Dear student,refractive index=speed of light in vacuumspeed of light in water1.33=3×108speed of light in waterspeed of light in water=3×1081.33speed of light in water==2.25×108 m/sRegards -1 View Full Answer Christine answered this refer this link -1 Sona K answered this 2.3?10^8 m/s 1