One type of transparent glass has refractive index 1.5. What is the speed of light through thi glass?

Explanation

`n = ( c)/(v),v = (c )/(n)`
`v = (3 xx 10^(8))/(1.5) = 2 xx 10^(8) ms^(-1)`
Light travels with a speed of `2 xx 10^(8) ms^(-1)` through this glass.