Draw a labelled diagram of larynx and explain its functions.
Important Questions on Sound
A key of the mechanical piano is first struck gently and then struck again, but much harder this time. In the second case:
The frequencies of four sound waves are given below. Which of these sound waves can be used to measure the depth of the sea?
Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros?
Your parents are going to buy a house. They have been offered one house on the roadside and another house three lanes away from the roadside. Which house would you suggest your parents should buy? Explain your answer.
The sound from an insect is produced when it vibrates its wings at an average rate of vibrations per second. Can we hear this sound? Why or why not?
