Question

In human beings, sound is produced in the voice box. Vinod has a thick voice while vinodhini has a shrill voice. Which part of it is responsible for varying pitches ?

a. Wind pipe
b. Vocal cords
c.Narrow Slit
d. Trachea​

Answer 1

vocal cords and wind pipe

Answer 2

Vocal chord is responsible for varying pitches.

• Vinod would have a thick voice as compared to Vinodhini due to the difference in their vocal chords.
• Vinodhini would have a shrill voice because her vocal chords must be short and thin.
• Short and thin vocal chords give Vinodhini's voice a higher pitch which is known as shrillness and fast frequency.