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Sound — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsSound1 Mark
MCQ
The physical quantity that will remain unchanged after reflection of sound wave is:
  • A
    velocity
  • B
    wavelength
  • ✓
    frequency
  • D
    all of these
✓

Answer

Correct option: C.
frequency
C

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