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प्रश्न
Draw a labeled diagram of the front view of human eye.
उत्तर
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संबंधित प्रश्न
The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to ______.
Answer briefly:
How do you perceive the colour of an object?
Name the part of the eye:
on which the image is formed.
Fill in the following blank with suitable words:
When light is dim, the pupil becomes................
Describe and explain, how a normal eye can see objects lying at various distances clearly.
There are two types of light-sensitive cells in the human eye:
To what is each type of cell sensitive?
Describe the working of the human eye with the help of the above diagram.
What is a lacrimal gland?
Sometimes you remember a vivid picture of a dream you saw. What is the role of your eyes in this experience?
With reference to the functioning of the eye, answer the question that follow:
Name the cells of the retina and its respective pigments which get activated in the dark.
The figure below compares a part of our eye with a part of a photographic camera.
Name the corresponding parts of the eye the camera shown here that are comparable in function.
Draw a diagram of the human eye as seen in a vertical section and label the parts which suit the following descriptions relating to the:
(i) photosensitive layer of the eye.
(ii) structure which is responsible for holding the eye lens in its position.
(iii) structure which maintains the shape of the eyeball and the area of no vision.
(iv) anterior chamber seen in front of the eye lens.
(v) outermost transparent layer seen in front of the eyeball.
Give Technical Term:
The cells of the retina that are sensitive to colour.
A small hole of changing diameter at the centre of Iris is called _______.
We cannot distinguish colours in dim light. Explain giving suitable reasons.
The coloured portion of the eye is the ______.
In human eye the part which allows light to enter into the eye is ______.
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 accomadation |
Chris was watching the display of fireworks in the sky.
- Trace the path of the light rays using the following terms:
Fovea, Lens, Conjunctiva, Pupil, Cornea. - Name the nerve that carries the impulse for vision to the brain.
The thin, transparent extension of sclerotic layer found in front of the lens is ______.
