Question

the absolute refractive index the glass and water are 4/3amd3/2 respactively. if the speed of light in glass is 2×10 power 8 m/s,calculate the speed of light in vacuum and water​

Answer 1

2*10^8= Speed in vaccum/speed of light in water ,, v=speed in vaccum

2*10^8=v/3/2

2*10^8=v*2/3

2/2*10^8=v/3

1*10^8=v/3

V=3*10^8

Answer 2

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