The far point and the near point refer to the visibility of objects close by and far away from the human eye respectively. These are the maximum and minimum distances at which an object is clearly visible to a person.
The near point and the far point are determined with regard to the function of which part of the eye?
Important Questions on The Human Eye and the Colourful World
The iris is a muscular diaphragm that controls the size of the pupil. It consists of two layers: the front pigmented fibrovascular layer known as a stroma and, beneath the stroma, pigmented epithelial cells. The colour of the eye is defined by the pigmentation of the iris.
Which of the following can be directly affected if the iris does not function properly?
Nanda saw rays of sunlight entering into a dark room as shown below. He then did something to the air in the room after which he was NOT able to see the rays of sunlight in the room. What is it that Nanda could have done to make the rays of sunlight invisible? Justify your answer.
