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प्रश्न
Give Technical Term:
The cells of the retina that are sensitive to colour.
उत्तर
Cones
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संबंधित प्रश्न
Compare the following: Choroid and 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
State whether these spectacle lenses will converge light rays or diverge light rays.
Name two parts of the eye which refract light rays (or bend light rays).
Out of rods and cones m the retina of your eye:
which work in dim light?
Fill in the following blank with suitable word:
The part of eye which alters the size of the pupil is............
Fill in the following blank with suitable word:
To bring light from a distant object to a focus on the retina of the eye, the convex eye-lens needs to be made..........
The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
the converging power of eye-lens will be the maximum?
What happens to the eye when you enter a darkened cinema hall from bright sunshine? Give reason for your answer.
There are two types of light-sensitive cells in the human eye:
To what is each type of cell sensitive?
How does the convex eye-lens differ from the ordinary convex lens made of glass?
Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.
With reference to the functioning of the eye, answer the question that follow:
Name the cells of the retina and its respective pigments which get activated in the light.
Define the following:
Blind spot
Define the following:
Power of accommodation
Name the following:
The opening through which light enters the eyes.
Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm
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.
Write the function of the human eye and label parts of the figure given below.
The layer in the eye where sensory cells (rods and cones) are located ______.
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the shape of lens.
