MP Board · Class 9 · Science · SoundHow does the loudness of a sound wave depend on its amplitude?
Step-by-Step Solution
Loudness is the measure of auditory response of the human ear to sound. It depends directly on the amplitude of the vibrating body producing the sound. Loudness is proportional to the square of the amplitude of vibration. If the amplitude is doubled, the loudness becomes four times as large, producing a much louder sound.
💡 Study Guide: This question tests core syllabus concepts from Sound. For formulas, key summaries, and mock exam reference guides, read the full Sound Revision Notes.