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Waves — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsWaves1 Mark
MCQ
At nodes in stationary waves:
  • A
    Change in pressure and density are maximum.
  • B
    Change in pressure and density are minimum.
  • C
    Strain is zero.
  • D
    Energy is maximum.
✓

Answer

  1. Change in pressure and density are minimum.

Explanation:

In stationary waves, all particles except nodes oscillate with same frequency but amplitude is zero at nodes and maximum at anti-nodes. Thus, change in pressure and density is minimum at nodes. Following two wave trains are approaching each other.

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