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प्रश्न
Name the following:
The pigmented circular area seen in the eye.
उत्तर
Iris
APPEARS IN
संबंधित प्रश्न
The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to ______.
Differentiate between: Rods and cones
Give the scientific names of the following parts of the eye:
a hole in the middle of the iris.
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 converging power of eye-lens will be the maximum?
Refraction of light in the eye occurs at:
(a) the lens only
(b) the cornea only
(c) both the cornea and the lens
(d) the pupil
Which of the following controls the amount of light entering the eye?
(a) ciliary muscles
(b) lens
(c) iris
(d) cornea
A student sitting on the last bench in the class cannot read the writing on the blackboard clearly but he can read the book lying on his desk clearly. Which of the following statement is correct about the student?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come close to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
How much is our field of view:
with both eyes open?
Explain the Term: Accommodation in the eye
Name the following:
The type of lens used for correcting myopia.
Give Technical Term:
Name the part of the retina on which an object is focused for the clearest vision.
Give Technical Term:
The nutritive layer of the eye which also presents reflection of light.
The image of the object in the human eye is formed on the cross screen.
Complete the paragraph by choosing the right options given below.
(minimum, near point, 25 cm, farthest, farthest distance, far point)
The _______ distance of an object from a normal eye, at which it is clearly visible without stress on the eye, is called the minimum distance of distinct vision. The position of the object at this distance is called the _______ of the eye, for a normal human eye, the near point is at _______. The _______ distance of an object from a human eye, at which it is clearly visible without stress on the eye is called _______ of distinct vision. The position of the object at this distance is called the _______ of the eye.
The pigmented circular area seen in front of the eye:
Write down the names of parts of the eye in the blank spaces shown in the figure.
The transparent membrane that keeps the eye moist is ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Pathway of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | f. Power of accommodation |
State the functions of the following:
Ciliary muscles
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the shape of lens.
