JEE Physics · Hard

Sound Waves: Shock Wave Advanced MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Shock Wave AdvancedHardQuestion 31288

Question

The half-angle of Mach cone satisfies sin θ = 1/M. For M = √2, θ equals:
  1. A
    30°
  2. B
    45°
    Correct
  3. C
    60°
  4. D
    90°

Correct answer

45°

Explanation

sin θ = 1/M = 1/√2 → θ = 45°.