The absolute refractive indices of glass and water are 4/3 & 3/2, respectively. If speed of light in glass is 2x108 m/s , calculate the speed of light in vacum and water.( 2015 Boards Que. )
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refractive index of glass=speed of light in vaccum / speed of light in glass
3/2 = speed of light in vaccum / 2*10^8
speed of light in vaccum= 3*10^8
refractive index of water= speed of light in vaccum / speed of light in water
4/3 = 3*10^8 / speed of light in water
Speed of light in water = 2.25*10^8
3/2 = speed of light in vaccum / 2*10^8
speed of light in vaccum= 3*10^8
refractive index of water= speed of light in vaccum / speed of light in water
4/3 = 3*10^8 / speed of light in water
Speed of light in water = 2.25*10^8
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