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प्रश्न
Identify and explain concepts given in this diagram.
उत्तर
The concept upon which the diagrams are based is the persistence of vision.
Explanation:
- Persistence of vision is a phenomenon that allows the image formed on the retina to remain imprinted there for `1/16`th of a second after the object is removed from the front of the eyes.
- When cardboard with a cage drawn on one side and a monkey drawn on the other is tied to a thread and twisted and set into rotation, at one point, the observer gets the illusion of the monkey being inside the cage.
- This happens due to persistence of vision. Before the image of the cage could disappear from the retina, an image of the monkey gets created on the retina giving the observer the impression that the monkey is inside the cage.
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संबंधित प्रश्न
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 persons which are unable to distinguish between different colours
Write an Explanation.
Persistence of vision
Having two eyes facilitates in
A: Increasing the field of view
B: Bringing three-dimensional view
C: Developing the concept of distance/size
Then the correct option is/are
The focal length of the eye lens increases when eye muscles ____________.
The least distance of distinct vision for a normal eye is ____________.
A student sitting on the last bench can read the letters written on the blackboard but is not able to read/the letters written in his textbook. Which of the following statements is correct?
When light rays enter the eye, most of the refraction occurs at the
How are we able to see nearby and also the distant objects clearly?
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.
Adjusting the focal length of the eye lens to view objects at different distances is done by ______.
Give the reason for the following:
A person from bright sunlight outside enters a poorly lit room and feels blinded for a short while.
Define the following term:
Adaptation
Differentiate between members of the following pair with reference to what is asked in the bracket.
Near and distant accomodation (shape of lens).
