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प्रश्न
Write whether the following is true or false:
Rods are the receptor cells in the retina of the eye sensitive to dimlight.
पर्याय
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
Distinguish between: aqueous humor and vitreous humor
Draw a neat and labelled diagram of the structure of the human eye.
Name that part of the eye which is equivalent to the photographic film in a camera.
What change is made in the eye to enable it to focus on objects situated at different distances? Illustrate your answer with the help of diagrams.
There are two types of light-sensitive cells in the human eye:
What is each type called?
The human eye possesses the power of accommodation. This is the power to:
(a) alter the diameter of the pupil as the intensity of light changes
(b) distinguish between lights of different colours
(c) focus on objects at different distances
(d) decide which of the two objects is closer.
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons cannot donate eyes?
Having two eyes gives a person:
(a) deeper field of view
(b) coloured field of view
(c) rear field of view
(d) wider field of view
What is a lacrimal gland?
The figure below compares a part of our eye with a part of a photographic camera.
Explain the mode of working and the functions of the parts of the eye mentioned above.
Differentiate between:
Vitreous humour and Aqueous humour.
Name the following:
The innermost layer of the eye
Give Technical Term:
The adjustment of the eye in order to obtain a clear vision of objects at different distances
State the Location:
Iris
State the Function:
Iris
For a normal human eye the near point is at _______.
Write the name.
The fleshy screen behind cornea.
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 |
State the functions of the following:
Iris
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the size of pupil.
