Question

question 8 of 15
what is the purpose of the outer ear?
a. to convert sound waves into mechanical waves.
b. to collect and focus sound waves.
c. to convert mechanical waves into electrical waves.
d. to evaluate the quality of sound.

Explanation:

The outer - ear, which includes the pinna and the ear canal, serves to collect sound waves from the environment and funnel them towards the eardrum. It does not convert sound to mechanical waves (that's the eardrum's role), convert mechanical to electrical waves (inner - ear function), or evaluate sound quality.

Answer:

B. To collect and focus sound waves.