Advertisements
Advertisements
प्रश्न
What happens to the image distance in the eye when we increase the distance of an object from the eye?
Advertisements
उत्तर १
An image is formed on the retina even upon increasing an object's distance from the eye. For this, the eye lens becomes thinner, and its focal length increases as the object is moved away from the eye.
उत्तर २
Since the size of eyes cannot increase or decrease, the image distance remains constant. When we increase the distance of an object from the eye, the image distance in the eye does not change. The increase in the object distance is compensated by the change in the
focal length of the eye lens. The focal length of the eyes changes in such a way that the image is always formed at the retina of the eye.
संबंधित प्रश्न
The least distance of distinct vision for a young adult with normal vision is about ______.
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
Identify and explain concepts given in this diagram.
The 'eye muscles' are controlled by which cranial nerves?
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
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
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.
Give the reason for the following:
A person from bright sunlight outside enters a poorly lit room and feels blinded for a short while.
The vitamin required for the synthesis of rhodopsin is ______.
Define the following term:
Adaptation
