Home › MCQs › NEET Physics › Question #1061
Back to Questions
NEET Physics QUESTION #1061
Question 1
An unpolarized light beam is incident on medium of refractive index 1.73 at Brewster's angle. Then:
  • Both reflected and transmitted light are perfectly polarized at 60° and 30°
  • Transmitted light is completely polarized with refraction angle close to 30°
  • Reflected light is completely polarized and angle of reflection is close to 60°✔️
  • Reflected light is partially polarized and angle of reflection is close to 30°
Correct Answer Explanation
Brewster's angle: \(\tan\theta_B=n=1.73\approx\sqrt{3}\Rightarrow\theta_B=60°\). At Brewster's angle, reflected light is completely polarized (in the plane perpendicular to incidence). Angle of reflection \(=60°\). Transmitted light is partially polarized (not completely). Answer: option (3).