Question

Fill in the blanks:
In our eyes an image of objects we wish to view is made at the - - -.
A. retina
B. pupil
C. iris
D. cornea

Answer 1

Study the structure of the human eye. Recall the use of the different parts in the human eye in the image formation of an object seen by the human eye.

Complete step by step answer:
In our eyes, the objects we wish to view are seen when there is image formation of the object.
The main parts of the human eye are retina, pupil, iris, eye lens and cornea.
The pupil in the human eye helps in the image formation of the object in front of the eye by collecting the light from the object and focusing this light onto the image plane.
Therefore, the image of the objects we wish to view is not made by the pupil.
Hence, option B is incorrect.

The iris in the human eye works with the pupil to control the amount of light entering the eye.
Iris is a muscular structure. It shrinks when too much light enters the eye resulting in shrinking of pupil and widens when the amount of light is less resulting in widening of the pupil.
After passing through iris light falls on the eye lens. Hence, it works like a shutter in the eye.
Therefore, the image of the objects we wish to view is not made at the iris.
Hence, the option C is incorrect.

The cornea in the human eye along with the eye lens forms the image of the object seen on the image plane.
Therefore, the image of the objects we wish to view is not made at the cornea.
Hence, the option C is incorrect.

The retina in the human eye is the screen for the formation of the image produced by the focusing of light by cornea and eye lens.
The retina converts the image formed in electrical pulses to send it to the brain via optic nerves.
Therefore, the image of the objects we wish to view is made at the retina.

So, the correct answer is “Option A”.

Note:
All the parts in the human eye helps in the image formation.
But the screen on which the image is formed is retina in the eye.
The retina in the human eye is the screen for the formation of the image.