| A light wave travelling in a transparent homogeneous medium interd another transparent homogeneous medium of higher refractive index. The speed of light in the second medium |
(a)Is less than that in the first medium  |
| (b)It more than that in the first medium |
| (c)Is this same as that in the first medium |
| (d)May be more or less than that in the first medium depending on the angle of incidence |
