Question

Pick the incorrect statement based on the below given waveforms of sounds P and Q. P
Q

• A. Sound P is louder than sound Q.
  
• B. Pitch of sound P is more than that of sound Q.
  
• C. Sound Q has a larger amplitude than sound P.
  
• D. Sound Q has a longer time period than sound P.
  

Answer 1

The correct option is C Sound Q has a larger amplitude than sound P.


Loudness is directly proportional to the square of the amplitude. Here, sound P has more amplitude, thus it will be louder than Q.
Also, the pitch is directly proportional to the frequency. Here, the frequency of sound P is more than that of Q. Thus its pitch will be more but the time period will be less than that of Q.