Advertisements
Advertisements
Question
Give the main function of the following:
Retina
Solution
Retina - It prevents the reflection of light.
APPEARS IN
RELATED QUESTIONS
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.
Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?
Which of the following controls the amount of light entering the eye?
(a) ciliary muscles
(b) lens
(c) iris
(d) cornea
What shape are your eye-lenses:
when you look at your hand?
A student sitting on the last bench in the class cannot read the writing on the blackboard clearly but he can read the book lying on his desk clearly. Which of the following statement is correct about the student?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come close to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
State whether the following statement is true or false:
Rabbit has eyes which look sideways.
What are the advantages of having two eyes instead of just one?
Name two animals having eyes:
at the front of the head.
Write whether the following is true or false:
Rods are the receptor cells in the retina of the eye sensitive to dimlight.
What happens to the image distance in the normal human eye when we decrease the distance of an object, say 10 m to 1 m? Justify your answer.
Differentiate between:
Yellow spot and Blind spot.
What is the nature of the image that forms on the retina?
State the Function:
Aqueous humour
Write the name.
The part of human eye that transmits electrical signals to the brain.
Name the capacity of the eye lens to change its focal length as per need.
Write the function of the human eye and label parts of the figure given below.
What is ‘white of the eye’?
With neat, labeled diagram describe the structure of retina of eye.
With reference to human eye answer the question that follow:
Name the part of the eye associated with the layer providing nourishment to the eye.
