Refraction is the change in the direction of a wave due to a change in its transmission medium. The above diagram shows this phenomenon schematically, where a monochromatic light with wavelength \(\lambda\) is passing from medium I
to medium II
. At the boundary surface between the two mediums, some portion of the light is reflected and the rest is refracted with \(45^\circ\) refraction angle. Which of the following statements is NOT
a) The reflection angle \(\theta\) is \(30^\circ.\)
b) The frequency of the monochromatic light in medium I is greater than that in medium II.
c) The speed of the monochromatic light in medium I is faster than that in medium II.