Human Ear

Q.

List out the animals that communicate using infrasonic and ultrasonic sounds.

Q.

Which part of the ear converts the vibrations into electrical signals?

1. middle ear and cochlea

2. inner ear and cochlea

3. inner ear and tympanic membrane

4. middle ear and anvil

Q.

Draw a neat and labeled diagram of the human ear. With the help of this diagram, explain the construction and working of the human ear.

Q.

What is the function of three tiny bones in the ear ?

Q.

What is persistence of hearing?

Q. Which is not the bone of the middle ear?

1. Hammer
2. Stirrup
3. Pelvic
4. Anvil

Q.

Name the nerve which carries electrical impulses from the cochlea of ear to the brain.

Q.

Can we hear (a) infrasonic waves (b) ulfrasonic waves ?

Q.

Which of the following frequency of sound can’t be heard by human beings?

1. 40 Hz

2. 400 Hz

3. 4000 Hz

4. 40, 000 Hz

Q.

What do you mean by the audible range of frequency ?

Q.

Explain the working of the hearing aid. [3 MARKS]

Q.

Why should we not put a pin or pencil in our ears ?

Q.

Name that part of ear which vibrates when outside sound falls on it.

Q.

For which range of frequencies, human ears are most sensitive ?

Q. Which of the following consists of a thin membrane in the ear that starts vibrating on receiving sound waves?

1. Ear canal
2. Eardrum
3. Cochlea
4. Pinna

Q.

What is the maximum intensity level that can be heard by human ear?

1. 1 ​

2. 10 ​

3. 100 ​

4. 0.1 ​

Q.

What is a Hearing aid?

1. An electronic, battery operated device which can be worn by people with hearing loss in or behind their ear .

2. It makes sound louder so that a person with hearing loss can hear it better.

3. Receives sound through a microphone and converts it to an electrical signal.

4. Amplifies the electrical signal and retransmits them as sound using speakers.

Which of the above statements is correct?

1. 1, 2, 3 and 4

2. 2, 3 and 4 only

3. 1 only

4. 2 only

Q.

What is the name of passage in outer ear which carries sound waves to the ear - drum ?

Q. Question 1
What is the audible range of the average human ear?

Q. Which part of the human ear amplifies the sound wave?

1. Middle ear
2. Inner ear
3. Outer ear
4. All of the above

Q. Which of the following is a part of the middle ear?

1. All of the above.
2. Hammer
3. Anvil
4. Stirrup

Q.

The electrical signals are sent to brain via

1. Hammer

2. Cochlea

3. Auditory nerve

4. Stirrup

Q.

Which of the bones in the middle ear are responsible for amplification of the vibrations?

1. Hammer and anvil

2. Hammer, anvil and cochlea

3. Hammer, anvil and stirrup

4. Anvil and stirrup

Q.

Which has a larger frequency, infrasonic sound or ultrasonic sound?

Q.

What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?

Q.

Name the tube which connects the middle ear to throat.

Q.

Electrical signals generated in the ear are sent to the brain via which nerve?

1. Auditory nerve

2. Vocal nerve

3. Cochlea nerve

4. Anvil nerve

Q. Which of the following is a part of the middle ear?

1. Hammer
2. Anvil
3. Stirrup
4. All of the above.

Q.

Name the three tiny bones present in the middle part of ear.

Q. How sounds reach to our ears? What is the fluid inside cochlea?