Ear and Sound

Q. write the function of ear drum

Q.

The auditory receptors are present

1. In cochlea

2. In nose

3. On tongue

4. In retina

Q.

Explain how we can hear the sound through our ears. [5 MARKS]

Q. The frequency which is not audible to the human ear is:

1. $50\text{Hz}$
2. $500\text{Hz}$
3. $5000\text{Hz}$
4. $50\text{kHz}$

Q. Which of the following is an unpleasant sound?

1. Sound of a guitar
   
2. Sound of thunder
   
3. A song
   
4. Rustling of leaves
   

Q.

The __________ in ear senses the vibrations of sound, it sends the signals to the brain. This process is called hearing.

1. Eardrum

2. Voice box

3. None of these

4. Larynx

Q. Name the three ear bones which helps to amplify the vibration inside human ears?

1. Hammer, anvil and stirrup
2. Hammer, anvil and pinna
3. Pinna, hammer and stirrup
4. Eardrum, hammer and pinna

Q.

Give one function of the tympanic membrane?

Q. help(s) in amplification of sound waves in the middle ear.

1. Cochlea
2. Ear ossicles
3. Eardrum
4. Auditory nerve

Q. The image formed at the retina is sent to the brain with the help of _____________.

1. blood vessels
2. optic nerve
3. optical fibers
4. hair cells

Q.

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

1. 2000 Hz to 3000 kHz​

2. 200 Hz to 20 KHz

3. Can't be said

4. 2000 Hz to 3000 Hz​

Q. What is the function of optic nerve?

1. Transmits electrical signal to brain
2. Forms image
3. Reduces the size of the pupil
4. Keeps vitreous humour clear

Q.

What is the function of cochlea?

1. Amplifying the vibrations coming into the ear

2. reducing wavelength

3. Protection of ear

4. Generation of nerve impulse

Q.

What is ganglion?

Q.

Cochlea of mammalian ear is concerned with

1. hearing

2. balance of body

3. both of these

4. perception of atmospheric pressure

Q.

Explain the uses of the reflection of sound. [3 MARKS]

Q.

Pupil is responsible for the eye colour.

1. True
2. False

Q.

The __________ in ear senses the vibrations of sound.

1. None of these

2. Eardrum

3. Voice box

4. Larynx

Q. Which organ in the body is responsible for hearing?

1. Nose
2. Ear
3. Eyes
4. Teeth

Q.

Audible frequency range of human ear is

1. $34hz-34khz$

2. $3.4hz-30khz$

3. $20hz-20000khz$

4. None of these

Q. Define ear and give its basic function.

Q. Which of the following animal can understand the human language?

1. Birds
2. Dolphin
3. Snake
4. None of the above

Q. What are audible and inaudible sounds? What is the audibility frequency range for human ear?
[4 Marks]

Q.

What is the audible range of average human ear.

Q.

What is the range of hearing in human beings?

Q. The image formed at the retina is sent to the brain with the help of _____________.

1. blood vessels
2. hair cells
3. optic nerve
4. optical fibers

Q. Which of the following parts of the ear contains ear canal?

1. Inner ear
2. Outer ear
3. Middle ear
4. Pinna

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

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

Q. Elephant have large sized ear to hear

1. Low pitched sound
2. High pitched sound
3. None of the above
4. Vibrations

Q.

The membrane-like structure in the ear through which we hear sound is:

1. None of these

2. Larynx

3. Eardrum

4. Voice box