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प्रश्न
Name the following:
The opening through which light enters the eyes.
उत्तर
Iris
APPEARS IN
संबंधित प्रश्न
Write the function of the following part of the human eye:- iris
Explain the following:
Mechanism of generation of light-induced impulse in the retina.
Describe the anatomy of the human eye.
Name the part of the eye:
on which the image is formed.
How is the amount of light entering the eye controlled?
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?
There are two types of light-sensitive cells in the human eye:
What is each type called?
The human eye forms the image of an object at its ______.
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
State the Function:
Cornea
Name the capacity of the eye lens to change its focal length as per need.
Write an Explanation.
Farthest distance of distinct vision
The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.
Draw the struture of human eye and label its parts.
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
What kind of lens is there in our eyes? Where does it form the image of an object?
What is ‘white of the eye’?
Which one of the following statements is NOT correct?
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Path way 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 | e. Power of accommodation |
Name the following:
Kind of retinal cells sensitive to dim light.
