Question
Download Solution PDFWhen a beam of ordinary light is incident on a rectangular glass plate at a polarising angle, the resulting reflected and refracted beams are:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFBrewster angle 'or' Polarising angle:
The angle of incidence at which a beam of unpolarized light falling on a transparent surface is reflected as a beam of completely plane polarised light is called polarising or Brewster angle.
This relation is known as Brewster law.
- When unpolarized light is incident on a reflecting surface, the reflected and refracted beams are partially polarized.
- The reflected beam is completely polarized when the angle of incidence equals the polarizing angle θp, which satisfies the equation \(\frac{{{n_2}}}{{{n_1}}} =\) then θp.
- At this incident angle, the reflected and refracted rays are perpendicular to each other.
Last updated on Jun 19, 2025
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