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प्रश्न
Name the following:
The type of lens used for correcting myopia.
उत्तर
Biconcave
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संबंधित प्रश्न
Draw labelled diagrams of the following: Eye
Differentiate between: Rods and cones
What job does the pupil of the eye do?
To focus the image of a nearby object on the retina of an eye:
(a) the distance between eye-lens and retina is increased
(b) the distance between eye-lens and retina is decreased
(c) the thickness of eye-lens is decreased
(d) the thickness of eye-lens is increased
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 can donate eyes?
Mention, where in living organism is the following located and state their main function:
Fovea centralis
We see advertisements for eye donation on television or in newspapers. Write the importance of such advertisements.
Select the odd one in the following series:
Retina, Sclera, Ciliary body, Nephron.
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Sketch and label V.S. of a human eye.
Give Technical Term:
The nutritive layer of the eye which also presents reflection of light.
For the normal human eye, the near point is at ___________ cm.
______ is tough and thick white sheath that protects the inner parts of the eye.
______ is the structural and functional unit of living organisms.
Name the following:
Place of no vision in the retina of the eye.
The thin, transparent extension of sclerotic layer found in front of the lens is ______.
Match the terms in column I with those in column II and write down the matching pairs.
| Column I | Column II | ||
| (i) | Conjunctiva | (a) | Viral infection |
| (ii) | Cornea | (b) | Ciliary body |
| (iii) | Choroid | (c) | Spiral-shaped |
| (iv) | Cochlea | (d) | Transparent epithelium |
| (v) | Conjunctivitis | (e) | Suspensory ligament |
| (f) | Contains melanin | ||
| (g) | Transparent but appears black |
Where is the following located?
Yellow spot
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).
