$A$ ray of light is incident on the surface of a glass plate at Brewster's angle $\phi$. If $\mu$ is the refractive index of glass with respect to air,then the angle between the reflected and the refracted ray is:
- A$90^{\circ} + \phi$
- B$\sin^{-1}(\mu \cos \phi)$
- C$90^{\circ}$
- D$90^{\circ} - \sin^{-1}(\sin \phi / \mu)$
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