Question

what is the speed of light in air,water,vacuum,

Answer 1

$\boxed{hlo}$

here is ur answer...

speed of sound in air at 0°C= 331m/s

speed of sound in air at 20°C = 343m/s

speed of sound in water = 1500m/s

Answer 2

Speed of light in vacuum is 3*10^8 m/s

Speed of light in air is also almost equal to 3*10^8 m/s

Speed of light in water is 2.25 *10^8 m/s