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प्रश्न
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
पर्याय
is scattered the most by smoke or fog
is scattered the least by smoke or fog
is absorbed the most by smoke or fog
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उत्तर
moves fastest in air
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संबंधित प्रश्न
The least distance of distinct vision for a young adult with normal vision is about ______.
What happens to the image distance in the eye when we increase the distance of an object from the eye?
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 an Explanation.
Persistence of vision
Identify and explain concepts given in this diagram.
The eyes of the nocturnal birds like owls are having a large cornea and a large pupil. How does it help them?
The 'eye muscles' are controlled by which cranial nerves?
The ability of the eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called:
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 the blind spot of the human eye ______.
Adjusting the focal length of the eye lens to view objects at different distances is done by ______.
The vitamin required for the synthesis of rhodopsin is ______.
Name the following:
Two types of adaptations.
Define the following term:
Adaptation
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).
