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Question 31269
JEE Physics · Medium

Sound Waves: Shock Wave MCQ

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Shock WaveMediumQuestion 31269

Question

When source speed equals sound speed, Mach number is:
  1. A
    0
  2. B
    0.5
  3. C
    1
    Correct
  4. D
    ∞

Correct answer

1

Explanation

Mach number M = v_source/v_sound. M = 1 means sonic speed — source moves with its own sound waves. A Mach cone is formed.

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