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प्रश्न
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
उत्तर
The ciliary muscles in our eyes help us to focus objects that are near and those that are distant in quick succession.
संबंधित प्रश्न
What is the principal function of the eye-lens?
Which part brings the image into sharp focus on the retina? How does it do this?
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
The animals of prey have:
(a) two eyes at the front
(b) two eyes at the back
(c) two eyes on the sides
(d) one eye at the front and one on the side
Name the following:
The focal length of the lens is altered by the contraction of which type of muscles.
Name the following:
The region in the eye where the rods and cones are located.
Draw the struture of human eye and label its parts.
A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?
 |
 |
 |
 |
| (A) | (B) | (C) | (D) |
Arrange and rewrite the term in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Pupil, Aqueous humour, Retina, Vitreous humour.
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).
