The refractive index is equal to the tangent of the angle of polarization. It is called:
Correct answer: A. Brewster's Law
- A. Brewster's Law
- B. Malu's Law
- C. Bragg's Law
- D. Grimaldi's Law
Explanation
Brewster's law gives a relationship for light waves stating that the maximum polarization (vibration in one plane only) of a ray of light may be achieved by letting the ray fall on the surface of a transparent medium in such a way that the refracted ray makes an angle of 90 with the reflected ray. So, the correct answer is option (A), i.e. Brewster's Law.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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