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प्रश्न
Name the following:
Place of best vision in the retina of the eye.
उत्तर
Yellow spot
संबंधित प्रश्न
Draw labelled diagrams of the following: Eye
How does the eye regulate the amount of light that falls on the retina?
A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D
Which lens bends the light rays more strongly?
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
Explain the functions of the following parts of the eye:
(i) cornea
(ii) iris
(iii) pupil
(iv) ciliary muscles
(v) eye-lens
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 size of the pupil of the eye is adjusted by:
(a) cornea
(b) ciliary muscles
(c) optic nerve
(d) iris
After testing the eyes of a child, the optician has prescribed the following lenses for his spectacles:
Left eye : + 2.00 D
Right eye : + 2.25 D
The child is suffering from the defect of vision called:
(a) short-sightedness
(b) long-sightedness
(c) cataract
(d) presbyopia
Fill in the following blank with suitable word:
Having two eyes gives a ................field of view.
With both eyes open, a person's field of view is about:
(a) 90°
(b) 150°
(c) 180°
(d) 360°
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Differentiate between:
Retina and Choroid.
Draw a labeled diagram of the front view of human eye.
State the Function:
Cornea
Choose the Odd One Out:
Complete the following sentence with appropriate Word
The aperture in the eye through which light enters is the:
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
Which cells of the retina enable us to see coloured objects around us?
Vitreous humour is present between ______.
The layer in the eye where sensory cells (rods and cones) are located ______.
