Question
Science Question on Amplitude, Time Period and Frequency of a Vibration
Voice of which of the following is likely to have minimum frequency?
A
Baby girl
B
Baby boy
C
A man
D
A woman
Answer
A man
Explanation
Solution
Frequency of a sound is directly proportional to its pitch and inversely proportional to its amplitude. The voice of an adult man is of lower pitch and high amplitude in comparison to the voices of a baby boy, a baby girl and a woman. The voice of a baby girl has highest pitch among this group.
Therefore the correct option is (C): A man.