Question

What kind of assistive device does a person hard of hearing use?

(a) cochlear implant

(b) hearing aid

(c) device giving electrical impulses to the ear

(d) surgical methods

I have been asked this question in class test.

I would like to ask this question from Rehabilitative Devices in chapter Rehabilitation and Recovery of Clinical Science

Answer 1

Right option is (b) hearing aid

Easiest explanation: A hearing aid amplifies the sound and lets a person hear better. A person who is hard of hearing normally has a damaged tympanic membrane which is unable to amplify the sound waves and send it to the ear. In such cases, a hearing aid which amplifies the sound waves is used. These amplified sound waves reach the cochlea of the ear where the sensory hair convert the sounds into electrical impulses and the sound is processed.