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Question 31274
JEE Physics · Hard

Sound Waves: Shock Wave MCQ

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

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Shock WaveHardQuestion 31274

Question

The sonic boom from a supersonic aircraft is due to:
  1. A
    Explosion at the aircraft
  2. B
    Mach cone — conical shock wave reaching the ground continuously as aircraft passes
    Correct
  3. C
    Reflection of sound from clouds
  4. D
    Engine noise at supersonic speed

Correct answer

Mach cone — conical shock wave reaching the ground continuously as aircraft passes

Explanation

Sonic boom is caused by the Mach cone (conical pressure wave) sweeping the ground as the aircraft passes. Observers hear the boom when the cone passes, not when aircraft is overhead.

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