Tag: physics

Quizzes (598) Questions (13441)

Questions Related to physics

Multiple choice how humans hear sound human ear study of sound sound physics

Which of the following order is correct?

  1. Sound $\rightarrow$ ear $\rightarrow$ inner ear $\rightarrow$ vibration of eardrum $\rightarrow$ brain $\rightarrow$ hearing
  2. Ear $\rightarrow$ Vibration of eardrum $\rightarrow$ Inner ear $\rightarrow$ hearing $\rightarrow$ brain $\rightarrow$ vibration
  3. Sound $\rightarrow$ ear $\rightarrow$ inner ear $\rightarrow$ vibration of eardrum $\rightarrow$ hearing $\rightarrow$ brain
  4. Sound $\rightarrow$ ear $\rightarrow$ vibration of eardrum $\rightarrow$ inner ear $\rightarrow$ brain $\rightarrow$ hearing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When sound strikes the ear drum, it vibrates and this vibration is carried to the inner ear from where it is carried to the brain in the form of impulse. The brain then gives the signal and we hear the sound.

Multiple choice how humans hear sound human ear study of sound sound physics

The compressions and rarefactions are transmitted across the middle ear through

  1. auditory tube

  2. ear ossicles

  3. cochlea

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The compressions and rarefactions are transmitted across the middle ear through the three ear ossicles. The vibrations produced in the ear drum are amplified.

Multiple choice how humans hear sound human ear study of sound sound physics

The tympanum of the ear receive the sound in the form of

  1. compressions

  2. rarefaction

  3. reflection

  4. both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tympanum of the ear receive the sound in the form of compressions and rarefaction. These compressions and rarefaction strike the ear drum, the ear from begins to vibrate.

Multiple choice how humans hear sound human ear study of sound sound physics

What stimulates the auditory nerve?

  1. The movement of the three ear ossicles

  2. The movement of stirrup

  3. The movement of fluid in the cochlea

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cochlea is a coiled and fluid filled tube having sense of hearing.the movement of the fluid in the cochlea due to the vibrations stimulates the auditory nerve.

Multiple choice how humans hear sound human ear study of sound sound physics

The thin stretched membrane at the end of the ear canal is 

  1. Pinna

  2. Cochlea

  3. Eardrum

  4. Stapes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Eardrum is the thin stretched membrane at the end of inner ear , which vibrates when sound wave strikes it .

Multiple choice how humans hear sound human ear study of sound sound physics

Which part of the ear vibrates when sound waves enter our ear?

  1. Ear canal

  2. Eardrum

  3. Pinna

  4. Cochlea
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ear canal is provides the path to sound to ear .

Pinna collects the sound .
Cochlea transforms the sound in neural message .
Eardrum vibrates when sound wave strikes them .

Multiple choice how humans hear sound human ear study of sound sound physics

We find it difficult to hear if we put cotton in our ears. This is because

  1. cotton damps the sound wave before reaching the ear drum

  2. cotton creates a vacuum in the ear

  3. cotton conducts the vibration to the ear drum

  4. none of the above is true
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cotton, put inside ear, damps  the vibration entering the ear. So, when the damped sound reaches the eardrum, its vibration becomes lower than original. So, we find it difficult to hear.

Multiple choice how humans hear sound human ear study of sound sound physics

A very loud sound

  1. damages the hair cells of the inner ear

  2. damages the outer ear

  3. damages the middle ear

  4. reflects back from the ear
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A very loud sound damages the hair cells of the inner ear. The hair cells die and stop sending sound signals to the brain. Once damaged, these hair cells do not grow back.