A ray of monochromatic light is incident on the plane surface of separation between two media \(X\) and \(Y\) with angle of incidence 'i' in medium \(X\) and angle of refraction ' \(r\) ' in medium \(Y\). The given graph shows the relation between sin \(i\) and \(\sin r\). If \(V_x\) and \(V_{\mathrm{Y}}\) are the velocities of the ray in media \(X\) and \(Y\) respectively, then which of the following is true?

1. A \(V_X=\frac{1}{\sqrt{3}} V_Y\)
2. B \(\mathrm{V}_{\mathrm{X}}=\sqrt{3} \mathrm{~V}_Y\)
3. C Total internal reflection can happen when the light is incident in medium \(X\).
4. D \(v_X=\sqrt{3} v_Y\), where \(v_X\) and \(v_Y\) are frequencies of the light in medium \(X\) and \(Y\) respectively.