Tag: study of sound

Quizzes (14) Questions (314)

Questions Related to study of sound

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.

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

Why can't we hear the scream of bat?

  1. Because its scream consists of infrasonic sound

  2. Because its scream consists of ultrasonic sound

  3. Because its scream consists of subsonic sound

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bats produce ultrasonic sound and thus humans cannot hear them. Bats emit sound in the range of $20,000$ to $100,000\ Hz$ which is beyond our audible range.

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

What is conductive hearing loss?

  1. When outer or middle ear leads to problem and inefficient transfer of sound

  2. When inner ear leads to problem and inefficient transfer of sound

  3. When only middle ear leads to problem and inefficient transfer of sound

  4. When inner and middle ear leads to problem and inefficient transfer of sound
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When outer or middle ear gets damage causing insufficient transfer of sound to inner ear.

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

Which of the following is / are true?

  1. the inner ear consists of a cochlea, the semicircular canals and the auditory nerve

  2. the middle ear is an air filled cavity that consists of an ear drum and three tiny interconnected bones the hammer, anvil and stirrup

  3. the human ear consists of three basic parts - outer ear, middle ear and inner ear

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

All of the options are correct.

The inner ear consists of a cochlea, the semicircular canals and the auditory nerve.
The middle ear is an air filled cavity that consists of an ear drum and three tiny interconnected bones the hammer, anvil and stirrup.
The human ear consists of three basic parts - outer ear, middle ear and inner ear.