Question

Could someone help me eliminate some of these answer choices?

Sound waves are converted finally into which of these signals in order to be processed by the brain?

A. electrical signal waves
B. pressure waves
C. longitudinal waves
D. high-frequency transverse waves
E. low-frequency transverse waves

Answer 1

Explanation :

There are many types of waves like transverse waves or longitudinal waves. The sound is a longitudinal wave and light is a transverse wave. The longitudinal waves propagate in the form of compression and rarefaction.

Compression is the position where the particles are present in bulk i.e have maximum pressure or density. On the other hand, rarefaction is the position where the particles are far apart from each other.

Due to this pressure difference, noise is created into our eardrum that moves to the brain through the auditory nerve. This noise is in the form of electrical signal waves.

So, the sound waves are converted finally into electrical signal waves in order to be processed by the brain.

Hence, the correct option is (A).

Answer 2

In order to be processed by the brain, sound waves are converted into :
A. Electrical signal waves
In order to be carried out by our neurons, information has to be transferred as electrical wave through our brain nerves

hope this helps