Tag: study of sound

Questions Related to study of sound

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

  1. compressions

  2. rarefaction

  3. both

  4. none


Correct Option: C
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.

Mark the correct statement.

  1. Time taken by two consecutive compressions or one rarefaction is called the time period of the wave.

  2. Sound of a vollin and a flue are different due to the difference in the medium through which they travel.

  3. How the brain interpnetes the frequency of an emmitted sound is called pitch.

  4. All true


Correct Option: C
Explanation:

Time taken by 2 consecutive compression or rarefaction is called the time period of the wave.
Sound of a voilin and a flute is different due to their different pitches.

child inserted a needle in a man's ear. The man became deaf. Why

  1. the needle damaged the oval window

  2. the needle damaged the stirrup

  3. the needle damaged the ear drum

  4. all


Correct Option: C
Explanation:

Never insert any pointed object into the ear. It can damage the eardrum and make a person deaf. Ears are very fragile and delicate organs.

The compressions and rarefactions are transmitted across the middle ear through__________.

  1. auditory tube

  2. ear ossicles

  3. cochlea

  4. all


Correct Option: B
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.

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


Correct Option: C
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 .

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

Correct Option: D
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.

The compressions and rarefactions are transmitted across the middle ear through

  1. auditory tube

  2. ear ossicles

  3. cochlea

  4. all of these


Correct Option: B
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.

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

  1. compressions

  2. rarefaction

  3. reflection 

  4. both A and B


Correct Option: D
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.

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


Correct Option: C
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.

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

  1. Pinna

  2. Cochlea

  3. Eardrum

  4. Stapes


Correct Option: C
Explanation:

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