Question

Calculate the speed of light in a medium whose critical angle is `30^(@)`.

Answer 1

Here, `v = ?, C = 30^(@)`
`mu = ( C)/(v) = (1)/(sin C)`
`v = c sin C = 3 xx 10^(8) xx sin 30^(@) = 1.5 xx 10^(8)m//s`