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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
When we change feeble sound to loud sound we increase its:
  • A
    Frequency.
  • B
    Amplitude.
  • C
    Velocity.
  • D
    Wavelength.
✓

Answer

  1. Amplitude.

Explanation:

The loudness or softness of a sound is determined basically by its amplitude. So for a loud sound it must have higher amplitude.

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