Advertisements
Advertisements
प्रश्न
The eyes of the nocturnal birds like owls are having a large cornea and a large pupil. How does it help them?
Advertisements
उत्तर
- Owl has a large pupil so that it provides a larger pathway for light to flow towards the retina.
- In addition, it has a large comer so that a bigger image of the insects would be formed on the retina.
- In this way, the eyes of the nocturnal birds help them to identify the elements in the surroundings.
APPEARS IN
संबंधित प्रश्न
Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
The change in focal length of an eye lens is caused by the action of the ______.
Write the name.
The sensation on the retina persists for a while is
Write the name.
The persons which are unable to distinguish between different colours
The 'eye muscles' are controlled by which cranial nerves?
The least distance of distinct vision for a normal eye is ____________.
A piece of red glass is heated till its glows in dark. The colour of flowing glass would be:-
In simple microscope ______ lens is used.
Differentiate between members of the following pair with reference to what is asked in the bracket.
Near and distant accomodation (shape of lens).
Differentiate between members of the following pair with reference to what is asked in the bracket.
Dark and light adaptation (pigments which will be regenerated).
