Allied & ICAR Exam Bank • ALLIED_2456 MCQ • 2 Marks

Section 8: General Aptitude

Analytical & Spatial Aptitude

Subtopic: Spatial Reasoning & 3D Representations

Question Statement:

A ray of light reflects successively from two planar mirrors inclined at an angle theta. What is the total angular deviation delta experienced by the ray after two reflections?

Options:

  • (A) delta = 360 - 2*theta
  • (B) delta = 2*theta
  • (C) delta = 180 - theta
  • (D) delta = theta

Answer Key:

A

Step-by-Step Solution & Explanation

The total angular deviation after reflection from two mirrors inclined at angle theta is delta = 360 - 2*theta (or net change in heading is 2*theta depending on convention; 360 - 2*theta is standard total deviation).
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