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Statement I: The Sound produced from a violin and loudspeaker of the same frequency are distinguishable because of the difference in the quality of the sound Statement II: The intensity of sound increases with an increase in the amplitude of the sound wave 

Statement I: The Sound produced from a violin and loudspeaker of the same frequency are distinguishable because of the difference in the quality of the sound Statement II: The intensity of sound increases with an increase in the amplitude of the sound wave  Correct Answer Both statements I & II are individually true and statement II is  not the correct explanation of statement I

CONCEPT: 

  • A sound is a form of  energy that is produced due to the vibration of an object and travels in the form of a longitudinal wave through mediums 
  • Sound waves are mechanical in nature
  • Timbre is the characteristics of sound which only depends on the material from which sound is produced
  • The intensity of a sound wave is the amount of energy received per unit area and is proportional to the square of the amplitude 

⇒ I ∝ A2

Where I = Intensity, A = Amplitude 

EXPLANATION :

  • Even the sound produced from violin and loudspeaker are of the same frequency and the timbre of each sound is different, Hence statement I is true
  • Statement II is correct, the intensity of the wave is directly proportional to square amplitude, Hence statement II is true
  • The statements I & II are individually true
  • But statement II  is not the correct explanation of statement I 
  • Hence, option 2 is the answer

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