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Waves and Sound — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsWaves and Sound1 Mark
MCQ
As a wave propagates
  • A
    The wave intensity remains constant for a plane wave
  • B
    The wave intensity decreases as the inverse of the distance from the source for a spherical wave
  • ✓
    The wave intensity decreases as the inverse square of the distance from the source for a spherical wave
  • D
    Total intensity of the spherical wave over the spherical surface centered at the source remains constant at all times
✓

Answer

Correct option: C.
The wave intensity decreases as the inverse square of the distance from the source for a spherical wave
The wave intensity decreases as the inverse square of the distance from the source for a spherical wave

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