Advertisements
Advertisements
प्रश्न
Write the function of the following part of the human eye: ciliary muscles
उत्तर
The function of ciliary muscles:- When these muscles are relaxed, the lens becomes thin. Thus, its focal length increases. This enables us to see distant objects clearly. When you are looking at the objects closer to the eye, the ciliary muscles contract. This increases the curvature of the eye lens. The eye lens then becomes thicker. Consequently, the focal length of the eye lens decreases. This enables us to see nearby objects clearly.
APPEARS IN
संबंधित प्रश्न
What do the ciliary muscles do when you are focusing on a nearby object?
The descriptions of five kinds of images are given below:
(a) diminished and virtual
(b) enlarged and real
(c) enlarged and erect
(d) real and inverted
(e) virtual and the same size
Which one of these describes the image formed:
(i) on the retina of the eye?
(ii) by a magnifying glass?
(iii) by a convex driving mirror on a car?
(iv) by a plane mirror?
(v) on the screen of a slide projector?
Why does the eye-lens not have to do all the work of converging incoming light rays?
Choose the correct answer.
Which one is the photoreceptor _____________
State the Function:
Conjunctiva
Choose the Odd One Out:
Draw the struture of human eye and label its parts.
In a myopic eye, the image of the object is formed
Name the following:
Place of best vision in the retina of the eye.
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.
