1.

Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass ? The speed of light in vacum is 3xx10^(8)m//s.

Answer»

SOLUTION :Refractive index of a medium, `n_(m)=` speed of light in VACUUM, C `= 3XX10^(8)m//s`. Refractive index of glass V = speed of light in vacuum Refractive index of glass
`= c//n_(g)`
`=3xx10^(8)//1.50=2xx10^(8)m//s`.


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