Question

2.দরজায় ঘণ্টা বাজার শব্দ শুনে তুমি
যেভাবে দরজা খুলবে, সেই স্নায়বিক পথটি একটি শব্দছকের মাধ্যমে দেখাও।​

Answer 1

How sounds like the sound of the doorbell is audible to us:

• Energy waves are what create sounds. Molecule movement causes energy waves to propagate through a medium. As a result, the environment's air experiences alternating pressure rises and falls (i.e., compression and rarefaction). The frequency of a particular sound is the number of compression and rarefaction phases during a given time interval.
• The external acoustic meatus, which connects the outer ear to the eardrum, is where sound waves enter the ear (tympanic membrane). The membrane moves as a result of contact between the eardrum and external pressure waves. The malleus, incus, and stapes, three little bones in the middle ear, begin to vibrate when the tympanic membrane moves. These three bones then transmit the vibration to the inner ear at the oval (vestibular) window.
• The cochlea receives this energy after it has been amplified by the three middle ear bones. Auditory receptor cells transform mechanical energy into electrical energy within the cochlea (hair cells). Within the inner ear's cochlea, this conversion takes place. The cochlea is a structure made of fluid (perilymph) that wraps around a central shaft in a 2-turn spiral (modiolus). The scala tympani, scala vestibule, and scala media make up each of the three cross-sectional portions of the cochlea.
• Within the outer region of the cochlea is the scala tympani. The helicotrema is where it connects to the scala vestibule, which lines the inner part of the cochlea. The scala media lies in between these fluid-filled space. Waves are generated by oscillation of the oval window and travel via the cochlea's scala vestibule and scala tympani. Through the basilar membrane, waves from these areas press upon and send wave energy to the scala media (within the floor of the scala media).

Learn more here

https://brainly.in/question/22649867

#SPJ1