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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Which of the following is not a longitudinal wave?
  • A
    Seismic P-wave
  • ✓
    Light
  • C
    Sound
  • D
    Ultrasound
✓

Answer

Correct option: B.
Light
In case of light, the waveform changes perpendicular to the relative motion. So, it is a type of transverse wave, which causes the medium to vibrate perpendicular to the wave energy .

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