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Propagation of Sound Waves — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSPropagation of Sound Waves1 Mark
MCQ
The correct statement is :
  • A
    Sound and light both require medium for propagation.
  • B
    Sound can travel in vacuum, but light can not
  • ✓
    Sound needs medium, but light does not need medium for its propagation.
  • D
    Sound and light both can travel in vacuum.
✓

Answer

Correct option: C.
Sound needs medium, but light does not need medium for its propagation.

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