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Question
Fill in the following blank with suitable word:
The iris controls the amount of................entering the eye.
Solution
The iris controls the amount of light entering the eye.
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RELATED QUESTIONS
Write short notes on the following: Retina
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?
How does the eye change in order to focus on near or distant objects?
(a) The lens moves in or out
(b) The retina moves in or out
(c) The lens becomes thicker or thinner
(d) The pupil gets larger or smaller
Why does the eye-lens not have to do all the work of converging incoming light rays?
Fill in the following blank with suitable word:
Having two eyes gives a ................field of view.
Having two eyes gives a person:
(a) deeper field of view
(b) coloured field of view
(c) rear field of view
(d) wider field of view
Mention if the following statement is true (T) or false (F) Give reason.
Short-sightedness and hyperopia are one and the same thing
Complete the following sentence with appropriate Word
The photoreceptor cells of the retina sensitive to colour are:
The image of an object at an infinite distance is obtained in a real and erect form through a convex magnifying glass.
Write down the names of parts of the eye in the blank spaces shown in the figure.
