68th BPSC Prelims (2023), question 107

🔬 Science & Technology

107. Shrillness of sound is determined by

     1. amplitude of sound
     2. wavelength of sound
     3. velocity of sound
     4. More than one of the above
     5. None of the above
     Show answer

     Answer: B — wavelength of sound

     Shrillness (pitch) is determined by wavelength/frequency of the sound wave.

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