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Sound — Science STD 9 — Question

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

Answer

  1. Amplitude.

Explanation:

Loudness: if a sound is directly proportional to its amplitude.

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