Advertisements
Advertisements
प्रश्न
Name the following:
The innermost layer of the eye
उत्तर
Retina
APPEARS IN
संबंधित प्रश्न
What do the ciliary muscles do when you are focusing on a nearby object?
The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
the focal length of eye-lens will be the maximum?
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
How does the eye change in order to focus on near or distant objects?
(a) The lens moves in or out
(b) The retina moves in or out
(c) The lens becomes thicker or thinner
(d) The pupil gets larger or smaller
Which of the following changes occur when you walk out of bright sunshine into a poorly lit room?
(a) the pupil becomes larger
(b) the lens becomes thicker
(c) the ciliary muscle relaxes
(d) the pupil becomes smaller
Give the main function of the following:
Retina
Write whether the following is true or false:
Rods are the receptor cells in the retina of the eye sensitive to dimlight.
Sketch and label V.S. of a human eye.
What is a stereoscopic vision?
Name the following:
Yellow spot and ciliary muscles are found in.
Name the following:
Fluid present in the posterior chamber of the eye.
Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm
State the Location:
Iris
Choose the Odd One Out:
Write the name.
The fleshy screen behind cornea.
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
Match the following
| 1. | Conjunctiva | a. | Coloured part of eye |
| 2. | Cornea | b. | Photosensitive layer |
| 3. | Iris | c. | Refraction |
| 4. | Retina | d. | Protection |
The change in the focal length of an eye lens in human beings is caused by the action of ______.
