1.

Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of the light in vacuum is 3xx10^(8)ms^(-1).

Answer»

Solution :`n_(g)=1.5`
`C=3XX10^(8)m//s`
`n_(g)=v/(v_(g))`
`v_(v)=c/(n_(g))=(3xx10^(8))/1.5=2xx10^(8)`m/s
Speed of LIGHT m glass in `2xx10^(8)` m/s


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