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प्रश्न
With reference to the functioning of the eye, answer the question that follow:
What is the shape of the lens during distant vision?
उत्तर
During distant vision, the lens is flatter and less curved.
संबंधित प्रश्न
Write the function of the following part of the human eye:- iris
Draw a neat and labelled diagram of the structure of the human eye.
Where is the image formed in a human eye?
What job does the pupil of the eye do?
Fill in the following blank with suitable words:
When light is dim, the pupil becomes................
A person walking in a dark corridor enters into a brightly lit room:
State the effect on the pupil of the eye.
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
Which of the following changes occur when you walk out of bright sunshine into a poorly lit room?
(a) the pupil becomes larger
(b) the lens becomes thicker
(c) the ciliary muscle relaxes
(d) the pupil becomes smaller
Nocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.
Name the following:
The part of the eye responsible for its shape.
Name the following:
The photoreceptors found in the retina of the eye.
Give scientific reason:
One can sense colours only in bright light.
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Explain the Term: Accommodation in the eye
Give Technical Term:
The cells of the retina that are sensitive to colour.
Write the name.
The screen with light sensitive cells in human eye.
Write an Explanation.
Minimum distance of distinct vision
Write down the names of parts of the eye in the blank spaces shown in the figure.
Name the following:
Place of best vision in the retina of the eye.
Give reason:
Blind spot is considered as 'area of no vision'.
