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प्रश्न
How much is our field of view:
with both eyes open?
उत्तर
Our field of view with both eyes open is 180o.
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संबंधित प्रश्न
With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects.
The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D
Are these lenses thinner at the middle or at the edges?
Give the scientific names of the following parts of the eye:
muscles which change the shape of the eye-lens.
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?
The animals of prey have:
(a) two eyes at the front
(b) two eyes at the back
(c) two eyes on the sides
(d) one eye at the front and one on the side
Mention if the following statement is true (T) or false (F) Give reason.
Sometimes medicines dropped into the eyes come into the nose and even throat
Define the following:
Power of accommodation
Name the following:
The innermost layer of the eye
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.
Name the following:
Three layers of the eye ball.
