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Question 31291
JEE Physics · Hard

Sound Waves: Standing Wave Modes MCQ

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Standing Wave ModesHardQuestion 31291

Question

In an open pipe, 4th overtone (5th harmonic) at 500 Hz. Pipe length (v = 340 m/s):
  1. A
    34 cm
  2. B
    170 cm
    Correct
  3. C
    85 cm
  4. D
    68 cm

Correct answer

170 cm

Explanation

f₅ = 5v/(2L) = 500 → L = 5×340/(2×500) = 1700/1000 = 1.7 m = 170 cm.

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